51322632 has 32 divisors (see below), whose sum is σ = 128494080. Its totient is φ = 17082560.

The previous prime is 51322627. The next prime is 51322681. The reversal of 51322632 is 23622315.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 23257 + ... + 25367.

It is an arithmetic number, because the mean of its divisors is an integer number (4015440).

Almost surely, 2^51322632 is an apocalyptic number.

It is an amenable number.

51322632 is an abundant number, since it is smaller than the sum of its proper divisors (77171448).

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

51322632 is a wasteful number, since it uses less digits than its factorization.

51322632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133 (or 3129 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 51322632 is about 7163.9815745157. The cubic root of 51322632 is about 371.6233324592.

Adding to 51322632 its reverse (23622315), we get a palindrome (74944947).

The spelling of 51322632 in words is "fifty-one million, three hundred twenty-two thousand, six hundred thirty-two".