51360900 has 36 divisors (see below), whose sum is σ = 148605072. Its totient is φ = 13696160.

The previous prime is 51360871. The next prime is 51360901. The reversal of 51360900 is 906315.

It is a super-3 number, since 3×51360900³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51360901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85302 + ... + 85901.

Almost surely, 2^51360900 is an apocalyptic number.

51360900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51360900 is an abundant number, since it is smaller than the sum of its proper divisors (97244172).

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

51360900 is a wasteful number, since it uses less digits than its factorization.

51360900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171220 (or 171213 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 51360900 is about 7166.6519379694. The cubic root of 51360900 is about 371.7156747519.

The spelling of 51360900 in words is "fifty-one million, three hundred sixty thousand, nine hundred".