51097892 has 24 divisors (see below), whose sum is σ = 90921600. Its totient is φ = 25124256.

The previous prime is 51097853. The next prime is 51097901. The reversal of 51097892 is 29879015.

It is a super-2 number, since 2×51097892² = 5221989133687328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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 in 7 ways as a sum of consecutive naturals, for example, 70709 + ... + 71427.

It is an arithmetic number, because the mean of its divisors is an integer number (3788400).

Almost surely, 2^51097892 is an apocalyptic number.

It is an amenable number.

51097892 is a deficient number, since it is larger than the sum of its proper divisors (39823708).

51097892 is a wasteful number, since it uses less digits than its factorization.

51097892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 51097892 is about 7148.2789537063. The cubic root of 51097892 is about 371.0800969164.

The spelling of 51097892 in words is "fifty-one million, ninety-seven thousand, eight hundred ninety-two".