51560072 has 16 divisors (see below), whose sum is σ = 101763600. Its totient is φ = 24423120.

The previous prime is 51560023. The next prime is 51560101. The reversal of 51560072 is 27006515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169454 + ... + 169757.

It is an arithmetic number, because the mean of its divisors is an integer number (6360225).

Almost surely, 2^51560072 is an apocalyptic number.

It is an amenable number.

51560072 is a deficient number, since it is larger than the sum of its proper divisors (50203528).

51560072 is a wasteful number, since it uses less digits than its factorization.

51560072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339236 (or 339232 counting only the distinct ones).

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

The square root of 51560072 is about 7180.5342419628. The cubic root of 51560072 is about 372.1955460136.

Adding to 51560072 its reverse (27006515), we get a palindrome (78566587).

The spelling of 51560072 in words is "fifty-one million, five hundred sixty thousand, seventy-two".