51976965 has 32 divisors (see below), whose sum is σ = 84954240. Its totient is φ = 27131904.

The previous prime is 51976963. The next prime is 51976997. The reversal of 51976965 is 56967915.

It is not a de Polignac number, because 51976965 - 2¹ = 51976963 is a prime.

It is a super-2 number, since 2×51976965² = 5403209781222450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51976963) 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 in 31 ways as a sum of consecutive naturals, for example, 202117 + ... + 202373.

It is an arithmetic number, because the mean of its divisors is an integer number (2654820).

Almost surely, 2^51976965 is an apocalyptic number.

It is an amenable number.

51976965 is a deficient number, since it is larger than the sum of its proper divisors (32977275).

51976965 is a wasteful number, since it uses less digits than its factorization.

51976965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501.

The product of its digits is 510300, while the sum is 48.

The square root of 51976965 is about 7209.5051841302. The cubic root of 51976965 is about 373.1959931861.

The spelling of 51976965 in words is "fifty-one million, nine hundred seventy-six thousand, nine hundred sixty-five".