51274072 has 16 divisors (see below), whose sum is σ = 96402240. Its totient is φ = 25566816.

The previous prime is 51274063. The next prime is 51274073. The reversal of 51274072 is 27047215.

It is a super-2 number, since 2×51274072² = 5258060918922368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51274072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51274073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5608 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (6025140).

Almost surely, 2^51274072 is an apocalyptic number.

It is an amenable number.

51274072 is a deficient number, since it is larger than the sum of its proper divisors (45128168).

51274072 is a wasteful number, since it uses less digits than its factorization.

51274072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17562 (or 17558 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 51274072 is about 7160.5915956714. The cubic root of 51274072 is about 371.5060890336.

The spelling of 51274072 in words is "fifty-one million, two hundred seventy-four thousand, seventy-two".