51904356 has 48 divisors (see below), whose sum is σ = 141367296. Its totient is φ = 14513184.

The previous prime is 51904339. The next prime is 51904367. The reversal of 51904356 is 65340915.

It is a happy number.

It is an unprimeable number.

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, 2626 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (2945152).

Almost surely, 2^51904356 is an apocalyptic number.

It is an amenable number.

51904356 is an abundant number, since it is smaller than the sum of its proper divisors (89462940).

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

51904356 is a wasteful number, since it uses less digits than its factorization.

51904356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208 (or 13206 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 51904356 is about 7204.4677804818. The cubic root of 51904356 is about 373.0221340190.

The spelling of 51904356 in words is "fifty-one million, nine hundred four thousand, three hundred fifty-six".