51976719 has 6 divisors (see below), whose sum is σ = 75077496. Its totient is φ = 34651140.

The previous prime is 51976693. The next prime is 51976733. The reversal of 51976719 is 91767915.

It is not a de Polignac number, because 51976719 - 2¹⁵ = 51943951 is a prime.

It is a super-2 number, since 2×51976719² = 5403158636009922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51976789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2887587 + ... + 2887604.

It is an arithmetic number, because the mean of its divisors is an integer number (12512916).

Almost surely, 2^51976719 is an apocalyptic number.

51976719 is a deficient number, since it is larger than the sum of its proper divisors (23100777).

51976719 is a wasteful number, since it uses less digits than its factorization.

51976719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775197 (or 5775194 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 51976719 is about 7209.4881232997. The cubic root of 51976719 is about 373.1954044230.

The spelling of 51976719 in words is "fifty-one million, nine hundred seventy-six thousand, seven hundred nineteen".