51092864 has 16 divisors (see below), whose sum is σ = 101786820. Its totient is φ = 25546368.

The previous prime is 51092863. The next prime is 51092869. The reversal of 51092864 is 46829015.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×51092864² = 5220961503444992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51092863) by changing a digit.

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, 199454 + ... + 199709.

Almost surely, 2^51092864 is an apocalyptic number.

It is an amenable number.

51092864 is a deficient number, since it is larger than the sum of its proper divisors (50693956).

51092864 is an equidigital number, since it uses as much as digits as its factorization.

51092864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399177 (or 399165 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51092864 is about 7147.9272520081. The cubic root of 51092864 is about 371.0679251688.

The spelling of 51092864 in words is "fifty-one million, ninety-two thousand, eight hundred sixty-four".