51156004 has 12 divisors (see below), whose sum is σ = 90316044. Its totient is φ = 25351424.

The previous prime is 51155969. The next prime is 51156011. The reversal of 51156004 is 40065115.

It can be written as a sum of positive squares in 2 ways, for example, as 774400 + 50381604 = 880^2 + 7098^2 .

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, 56137 + ... + 57040.

It is an arithmetic number, because the mean of its divisors is an integer number (7526337).

Almost surely, 2^51156004 is an apocalyptic number.

It is an amenable number.

51156004 is a deficient number, since it is larger than the sum of its proper divisors (39160040).

51156004 is a wasteful number, since it uses less digits than its factorization.

51156004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113294 (or 113292 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51156004 is about 7152.3425533178. The cubic root of 51156004 is about 371.2207161354.

The spelling of 51156004 in words is "fifty-one million, one hundred fifty-six thousand, four".