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56251007 = 131429397
BaseRepresentation
bin1101011010010…
…1001001111111
310220211211212122
43112211021333
5103400013012
65325353155
71252061051
oct326451177
9126754778
1056251007
112983023a
1216a087bb
13b866727
1476838d1
154e11e72
hex35a527f

56251007 has 4 divisors (see below), whose sum is σ = 56680536. Its totient is φ = 55821480.

The previous prime is 56250991. The next prime is 56251033. The reversal of 56251007 is 70015265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56251007 - 24 = 56250991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56251067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214568 + ... + 214829.

It is an arithmetic number, because the mean of its divisors is an integer number (14170134).

Almost surely, 256251007 is an apocalyptic number.

56251007 is a deficient number, since it is larger than the sum of its proper divisors (429529).

56251007 is a wasteful number, since it uses less digits than its factorization.

56251007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429528.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 56251007 is about 7500.0671330329. The cubic root of 56251007 is about 383.1570026234.

The spelling of 56251007 in words is "fifty-six million, two hundred fifty-one thousand, seven".

Divisors: 1 131 429397 56251007