51904027 has 16 divisors (see below), whose sum is σ = 61378560. Its totient is φ = 42969888.

The previous prime is 51904019. The next prime is 51904033. The reversal of 51904027 is 72040915.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51904027 - 2³ = 51904019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51903986 and 51904004.

It is not an unprimeable number, because it can be changed into a prime (51904087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24993 + ... + 26989.

It is an arithmetic number, because the mean of its divisors is an integer number (3836160).

Almost surely, 2^51904027 is an apocalyptic number.

51904027 is a deficient number, since it is larger than the sum of its proper divisors (9474533).

51904027 is a wasteful number, since it uses less digits than its factorization.

51904027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51904027 is about 7204.4449473919. Note that the first 3 decimals coincide. The cubic root of 51904027 is about 373.0213458735.

The spelling of 51904027 in words is "fifty-one million, nine hundred four thousand, twenty-seven".