51366904 has 16 divisors (see below), whose sum is σ = 97198200. Its totient is φ = 25447392.

The previous prime is 51366901. The next prime is 51366919. The reversal of 51366904 is 40966315.

It is a self number, because there is not a number n which added to its sum of digits gives 51366904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28582 + ... + 30325.

Almost surely, 2^51366904 is an apocalyptic number.

It is an amenable number.

51366904 is a deficient number, since it is larger than the sum of its proper divisors (45831296).

51366904 is a wasteful number, since it uses less digits than its factorization.

51366904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59022 (or 59018 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 51366904 is about 7167.0708103102. The cubic root of 51366904 is about 371.7301584931.

The spelling of 51366904 in words is "fifty-one million, three hundred sixty-six thousand, nine hundred four".