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51134525 = 5213433659
BaseRepresentation
bin1100001100010…
…0000000111101
310120012220101022
43003010000331
5101042301100
65023553525
71160431151
oct303040075
9116186338
1051134525
1126956142
121515b8a5
13a794920
146b11061
154750e85
hex30c403d

51134525 has 24 divisors (see below), whose sum is σ = 69891360. Its totient is φ = 36872640.

The previous prime is 51134483. The next prime is 51134527. The reversal of 51134525 is 52543115.

It is not a de Polignac number, because 51134525 - 222 = 46940221 is a prime.

It is a super-2 number, since 2×511345252 = 5229479293951250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51134494 and 51134503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51134527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12146 + ... + 15804.

It is an arithmetic number, because the mean of its divisors is an integer number (2912140).

Almost surely, 251134525 is an apocalyptic number.

It is an amenable number.

51134525 is a deficient number, since it is larger than the sum of its proper divisors (18756835).

51134525 is a wasteful number, since it uses less digits than its factorization.

51134525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725 (or 3720 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51134525 is about 7150.8408596472. The cubic root of 51134525 is about 371.1687537371.

The spelling of 51134525 in words is "fifty-one million, one hundred thirty-four thousand, five hundred twenty-five".

Divisors: 1 5 13 25 43 65 215 325 559 1075 2795 3659 13975 18295 47567 91475 157337 237835 786685 1189175 2045381 3933425 10226905 51134525