51634680 has 32 divisors (see below), whose sum is σ = 154904400. Its totient is φ = 13769216.

The previous prime is 51634657. The next prime is 51634699. The reversal of 51634680 is 8643615.

It is a super-2 number, since 2×51634680² = 5332280357404800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215025 + ... + 215264.

Almost surely, 2^51634680 is an apocalyptic number.

It is an amenable number.

51634680 is an abundant number, since it is smaller than the sum of its proper divisors (103269720).

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

51634680 is a wasteful number, since it uses less digits than its factorization.

51634680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430303 (or 430299 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 51634680 is about 7185.7275205786. The cubic root of 51634680 is about 372.3749831961.

The spelling of 51634680 in words is "fifty-one million, six hundred thirty-four thousand, six hundred eighty".