51415996 has 12 divisors (see below), whose sum is σ = 90372520. Its totient is φ = 25595280.

The previous prime is 51415993. The next prime is 51416023. The reversal of 51415996 is 69951415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415993) 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, 27150 + ... + 28981.

Almost surely, 2^51415996 is an apocalyptic number.

It is an amenable number.

51415996 is a deficient number, since it is larger than the sum of its proper divisors (38956524).

51415996 is a wasteful number, since it uses less digits than its factorization.

51415996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56364 (or 56362 counting only the distinct ones).

The product of its digits is 48600, while the sum is 40.

The square root of 51415996 is about 7170.4948225349. The cubic root of 51415996 is about 371.8485431923.

The spelling of 51415996 in words is "fifty-one million, four hundred fifteen thousand, nine hundred ninety-six".