51285304 has 32 divisors (see below), whose sum is σ = 110246400. Its totient is φ = 21909600.

The previous prime is 51285259. The next prime is 51285343. The reversal of 51285304 is 40358215.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18829 + ... + 21379.

It is an arithmetic number, because the mean of its divisors is an integer number (3445200).

Almost surely, 2^51285304 is an apocalyptic number.

It is an amenable number.

51285304 is an abundant number, since it is smaller than the sum of its proper divisors (58961096).

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

51285304 is a wasteful number, since it uses less digits than its factorization.

51285304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923 (or 2919 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 51285304 is about 7161.3758454643. The cubic root of 51285304 is about 371.5332141904.

The spelling of 51285304 in words is "fifty-one million, two hundred eighty-five thousand, three hundred four".