51439304 has 32 divisors (see below), whose sum is σ = 111745920. Its totient is φ = 21741696.

The previous prime is 51439303. The next prime is 51439337. The reversal of 51439304 is 40393415.

It is not an unprimeable number, because it can be changed into a prime (51439303) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2204 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (3492060).

Almost surely, 2^51439304 is an apocalyptic number.

It is an amenable number.

51439304 is an abundant number, since it is smaller than the sum of its proper divisors (60306616).

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

51439304 is a wasteful number, since it uses less digits than its factorization.

51439304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12669 (or 12665 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 51439304 is about 7172.1199097617. The cubic root of 51439304 is about 371.9047237405.

The spelling of 51439304 in words is "fifty-one million, four hundred thirty-nine thousand, three hundred four".