51084904 has 16 divisors (see below), whose sum is σ = 103152420. Its totient is φ = 23577600.

The previous prime is 51084851. The next prime is 51084937. The reversal of 51084904 is 40948015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50836900 + 248004 = 7130^2 + 498^2 .

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, 245497 + ... + 245704.

Almost surely, 2^51084904 is an apocalyptic number.

It is an amenable number.

51084904 is an abundant number, since it is smaller than the sum of its proper divisors (52067516).

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

51084904 is a wasteful number, since it uses less digits than its factorization.

51084904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491220 (or 491216 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 51084904 is about 7147.3704255481. The cubic root of 51084904 is about 371.0486540231.

The spelling of 51084904 in words is "fifty-one million, eighty-four thousand, nine hundred four".