51553364 has 12 divisors (see below), whose sum is σ = 90929664. Its totient is φ = 25573464.

The previous prime is 51553343. The next prime is 51553391. The reversal of 51553364 is 46335515.

It is a self number, because there is not a number n which added to its sum of digits gives 51553364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50234 + ... + 51249.

It is an arithmetic number, because the mean of its divisors is an integer number (7577472).

Almost surely, 2^51553364 is an apocalyptic number.

It is an amenable number.

51553364 is a deficient number, since it is larger than the sum of its proper divisors (39376300).

51553364 is a wasteful number, since it uses less digits than its factorization.

51553364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101614 (or 101612 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

The square root of 51553364 is about 7180.0671306054. The cubic root of 51553364 is about 372.1794043501.

Adding to 51553364 its reverse (46335515), we get a palindrome (97888879).

The spelling of 51553364 in words is "fifty-one million, five hundred fifty-three thousand, three hundred sixty-four".