51958172 has 12 divisors (see below), whose sum is σ = 103916400. Its totient is φ = 22267776.

The previous prime is 51958129. The next prime is 51958189. The reversal of 51958172 is 27185915.

51958172 is an admirable number.

It is a congruent number.

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, 927797 + ... + 927852.

It is an arithmetic number, because the mean of its divisors is an integer number (8659700).

Almost surely, 2^51958172 is an apocalyptic number.

It is an amenable number.

51958172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51958172 is a wasteful number, since it uses less digits than its factorization.

51958172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855660 (or 1855658 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The square root of 51958172 is about 7208.2017174882. The cubic root of 51958172 is about 373.1510096840.

The spelling of 51958172 in words is "fifty-one million, nine hundred fifty-eight thousand, one hundred seventy-two".