51560523 has 16 divisors (see below), whose sum is σ = 87298560. Its totient is φ = 29463048.

The previous prime is 51560519. The next prime is 51560539. The reversal of 51560523 is 32506515.

51560523 is a `hidden beast` number, since 51 + 5 + 605 + 2 + 3 = 666.

It is not a de Polignac number, because 51560523 - 2² = 51560519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51560563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136215 + ... + 136592.

It is an arithmetic number, because the mean of its divisors is an integer number (5456160).

Almost surely, 2^51560523 is an apocalyptic number.

51560523 is a deficient number, since it is larger than the sum of its proper divisors (35738037).

51560523 is a wasteful number, since it uses less digits than its factorization.

51560523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272823 (or 272817 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 51560523 is about 7180.5656462426. The cubic root of 51560523 is about 372.1966312183.

The spelling of 51560523 in words is "fifty-one million, five hundred sixty thousand, five hundred twenty-three".