51563364 has 24 divisors (see below), whose sum is σ = 123113760. Its totient is φ = 16787904.

The previous prime is 51563339. The next prime is 51563377. The reversal of 51563364 is 46336515.

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, 49449 + ... + 50480.

It is an arithmetic number, because the mean of its divisors is an integer number (5129740).

Almost surely, 2^51563364 is an apocalyptic number.

It is an amenable number.

51563364 is an abundant number, since it is smaller than the sum of its proper divisors (71550396).

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

51563364 is a wasteful number, since it uses less digits than its factorization.

51563364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99979 (or 99977 counting only the distinct ones).

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

The square root of 51563364 is about 7180.7634691584. The cubic root of 51563364 is about 372.2034671408.

Adding to 51563364 its reverse (46336515), we get a palindrome (97899879).

The spelling of 51563364 in words is "fifty-one million, five hundred sixty-three thousand, three hundred sixty-four".