51634536 has 32 divisors (see below), whose sum is σ = 132577440. Its totient is φ = 16746048.

The previous prime is 51634523. The next prime is 51634543. The reversal of 51634536 is 63543615.

It is a super-2 number, since 2×51634536² = 5332250615870592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51634497 and 51634506.

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, 28186 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (4143045).

Almost surely, 2^51634536 is an apocalyptic number.

It is an amenable number.

51634536 is an abundant number, since it is smaller than the sum of its proper divisors (80942904).

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

51634536 is a wasteful number, since it uses less digits than its factorization.

51634536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58193 (or 58189 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 51634536 is about 7185.7175007093. The cubic root of 51634536 is about 372.3746370331.

The spelling of 51634536 in words is "fifty-one million, six hundred thirty-four thousand, five hundred thirty-six".