51930992 has 10 divisors (see below), whose sum is σ = 100616328. Its totient is φ = 25965488.

The previous prime is 51930953. The next prime is 51930997. The reversal of 51930992 is 29903915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51930997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622828 + ... + 1622859.

Almost surely, 2^51930992 is an apocalyptic number.

It is an amenable number.

51930992 is a deficient number, since it is larger than the sum of its proper divisors (48685336).

51930992 is a wasteful number, since it uses less digits than its factorization.

51930992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245695 (or 3245689 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 51930992 is about 7206.3161185171. The cubic root of 51930992 is about 373.0859316088.

The spelling of 51930992 in words is "fifty-one million, nine hundred thirty thousand, nine hundred ninety-two".