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52122525 = 35272131091
BaseRepresentation
bin1100011011010…
…1001110011101
310122002002122220
43012311032131
5101320410100
65101055553
71202014500
oct306651635
9118062586
1052122525
1127470474
12155575b9
13aa4c540
146ccb137
154898aa0
hex31b539d

52122525 has 72 divisors (see below), whose sum is σ = 108055584. Its totient is φ = 21974400.

The previous prime is 52122503. The next prime is 52122533. The reversal of 52122525 is 52522125.

It is not a de Polignac number, because 52122525 - 27 = 52122397 is a prime.

It is a super-2 number, since 2×521225252 = 5433515224751250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52122495 and 52122504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47230 + ... + 48320.

It is an arithmetic number, because the mean of its divisors is an integer number (1500772).

Almost surely, 252122525 is an apocalyptic number.

It is an amenable number.

52122525 is an abundant number, since it is smaller than the sum of its proper divisors (55933059).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52122525 is a wasteful number, since it uses less digits than its factorization.

52122525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1119 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 52122525 is about 7219.5931325803. The cubic root of 52122525 is about 373.5440433789.

The spelling of 52122525 in words is "fifty-two million, one hundred twenty-two thousand, five hundred twenty-five".

Divisors: 1 3 5 7 13 15 21 25 35 39 49 65 75 91 105 147 175 195 245 273 325 455 525 637 735 975 1091 1225 1365 1911 2275 3185 3273 3675 5455 6825 7637 9555 14183 15925 16365 22911 27275 38185 42549 47775 53459 70915 81825 99281 114555 160377 190925 212745 267295 297843 354575 496405 572775 694967 801885 1063725 1336475 1489215 2084901 2482025 3474835 4009425 7446075 10424505 17374175 52122525