51351896 has 32 divisors (see below), whose sum is σ = 98241600. Its totient is φ = 25159680.

The previous prime is 51351857. The next prime is 51351899. The reversal of 51351896 is 69815315.

51351896 = 1784² + 1785² + ... + 1799².

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51351899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121766 + ... + 122186.

It is an arithmetic number, because the mean of its divisors is an integer number (3070050).

Almost surely, 2^51351896 is an apocalyptic number.

It is an amenable number.

51351896 is a deficient number, since it is larger than the sum of its proper divisors (46889704).

51351896 is a wasteful number, since it uses less digits than its factorization.

51351896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 695 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 51351896 is about 7166.0237230978. The cubic root of 51351896 is about 371.6939518490.

The spelling of 51351896 in words is "fifty-one million, three hundred fifty-one thousand, eight hundred ninety-six".