51468904 has 8 divisors (see below), whose sum is σ = 96504210. Its totient is φ = 25734448.

The previous prime is 51468863. The next prime is 51468913. The reversal of 51468904 is 40986415.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36024004 + 15444900 = 6002^2 + 3930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51468904² = 5298096157922432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216799 + ... + 3216814.

Almost surely, 2^51468904 is an apocalyptic number.

It is an amenable number.

51468904 is a deficient number, since it is larger than the sum of its proper divisors (45035306).

51468904 is a wasteful number, since it uses less digits than its factorization.

51468904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433619 (or 6433615 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 51468904 is about 7174.1831590781. The cubic root of 51468904 is about 371.9760457848.

The spelling of 51468904 in words is "fifty-one million, four hundred sixty-eight thousand, nine hundred four".