51074172 has 24 divisors (see below), whose sum is σ = 132414800. Its totient is φ = 17024688.

The previous prime is 51074131. The next prime is 51074173. The reversal of 51074172 is 27147015.

51074172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51074173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236347 + ... + 236562.

Almost surely, 2^51074172 is an apocalyptic number.

It is an amenable number.

51074172 is an abundant number, since it is smaller than the sum of its proper divisors (81340628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51074172 is a wasteful number, since it uses less digits than its factorization.

51074172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472922 (or 472914 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 51074172 is about 7146.6196204919. The cubic root of 51074172 is about 371.0226687011.

The spelling of 51074172 in words is "fifty-one million, seventy-four thousand, one hundred seventy-two".