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52556045 = 557718217
BaseRepresentation
bin1100100001111…
…1000100001101
310122220010100012
43020133010031
5101423243140
65114243005
71205501423
oct310370415
9118803305
1052556045
1127737153
1215726465
13ab71969
146da1113
154932265
hex321f10d

52556045 has 8 divisors (see below), whose sum is σ = 63180024. Its totient is φ = 41969664.

The previous prime is 52555999. The next prime is 52556087. The reversal of 52556045 is 54065525.

It can be written as a sum of positive squares in 4 ways, for example, as 13380964 + 39175081 = 3658^2 + 6259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52556045 - 26 = 52555981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6224 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (7897503).

Almost surely, 252556045 is an apocalyptic number.

It is an amenable number.

52556045 is a deficient number, since it is larger than the sum of its proper divisors (10623979).

52556045 is a wasteful number, since it uses less digits than its factorization.

52556045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18799.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 52556045 is about 7249.5548139179. The cubic root of 52556045 is about 374.5768144688.

The spelling of 52556045 in words is "fifty-two million, five hundred fifty-six thousand, forty-five".

Divisors: 1 5 577 2885 18217 91085 10511209 52556045