51366204 has 24 divisors (see below), whose sum is σ = 133171920. Its totient is φ = 17122032.

The previous prime is 51366181. The next prime is 51366229. The reversal of 51366204 is 40266315.

51366204 is a `hidden beast` number, since 5 + 1 + 36 + 620 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 237699 + ... + 237914.

It is an arithmetic number, because the mean of its divisors is an integer number (5548830).

Almost surely, 2^51366204 is an apocalyptic number.

51366204 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

51366204 is an abundant number, since it is smaller than the sum of its proper divisors (81805716).

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

51366204 is a wasteful number, since it uses less digits than its factorization.

51366204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475626 (or 475618 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 51366204 is about 7167.0219756884. The cubic root of 51366204 is about 371.7284699072.

The spelling of 51366204 in words is "fifty-one million, three hundred sixty-six thousand, two hundred four".