51909676 has 24 divisors (see below), whose sum is σ = 111806240. Its totient is φ = 20535552.

The previous prime is 51909673. The next prime is 51909703. The reversal of 51909676 is 67690915.

It is a super-2 number, since 2×51909676² = 5389228924849952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51909673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70941 + ... + 71668.

Almost surely, 2^51909676 is an apocalyptic number.

It is an amenable number.

51909676 is an abundant number, since it is smaller than the sum of its proper divisors (59896564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51909676 is a wasteful number, since it uses less digits than its factorization.

51909676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142633 (or 142631 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 51909676 is about 7204.8369863585. The cubic root of 51909676 is about 373.0348780358.

The spelling of 51909676 in words is "fifty-one million, nine hundred nine thousand, six hundred seventy-six".