51415532 has 24 divisors (see below), whose sum is σ = 104369664. Its totient is φ = 21705552.

The previous prime is 51415523. The next prime is 51415543. The reversal of 51415532 is 23551415.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11828 + ... + 15579.

It is an arithmetic number, because the mean of its divisors is an integer number (4348736).

Almost surely, 2^51415532 is an apocalyptic number.

It is an amenable number.

51415532 is an abundant number, since it is smaller than the sum of its proper divisors (52954132).

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

51415532 is a wasteful number, since it uses less digits than its factorization.

51415532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27485 (or 27483 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51415532 is about 7170.4624676516. The cubic root of 51415532 is about 371.8474246153.

Adding to 51415532 its reverse (23551415), we get a palindrome (74966947).

The spelling of 51415532 in words is "fifty-one million, four hundred fifteen thousand, five hundred thirty-two".