51497164 has 6 divisors (see below), whose sum is σ = 90120044. Its totient is φ = 25748580.

The previous prime is 51497153. The next prime is 51497183. The reversal of 51497164 is 46179415.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437142 + ... + 6437149.

Almost surely, 2^51497164 is an apocalyptic number.

It is an amenable number.

51497164 is a deficient number, since it is larger than the sum of its proper divisors (38622880).

51497164 is a wasteful number, since it uses less digits than its factorization.

51497164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12874295 (or 12874293 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 51497164 is about 7176.1524510005. The cubic root of 51497164 is about 372.0441135492.

The spelling of 51497164 in words is "fifty-one million, four hundred ninety-seven thousand, one hundred sixty-four".