51919792 has 20 divisors (see below), whose sum is σ = 103840576. Its totient is φ = 25122240.

The previous prime is 51919783. The next prime is 51919793. The reversal of 51919792 is 29791915.

51919792 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51919793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51843 + ... + 52834.

Almost surely, 2^51919792 is an apocalyptic number.

It is an amenable number.

51919792 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.

51919792 is a wasteful number, since it uses less digits than its factorization.

51919792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104716 (or 104710 counting only the distinct ones).

The product of its digits is 51030, while the sum is 43.

The square root of 51919792 is about 7205.5389805344. The cubic root of 51919792 is about 373.0591084299.

The spelling of 51919792 in words is "fifty-one million, nine hundred nineteen thousand, seven hundred ninety-two".