51255364 has 6 divisors (see below), whose sum is σ = 89696894. Its totient is φ = 25627680.

The previous prime is 51255361. The next prime is 51255377. The reversal of 51255364 is 46355215.

It can be written as a sum of positive squares in only one way, i.e., 49815364 + 1440000 = 7058^2 + 1200^2 .

It is a super-2 number, since 2×51255364² = 5254224677544992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51255361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406917 + ... + 6406924.

Almost surely, 2^51255364 is an apocalyptic number.

It is an amenable number.

51255364 is a deficient number, since it is larger than the sum of its proper divisors (38441530).

51255364 is a wasteful number, since it uses less digits than its factorization.

51255364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813845 (or 12813843 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 51255364 is about 7159.2851598466. The cubic root of 51255364 is about 371.4609006236.

The spelling of 51255364 in words is "fifty-one million, two hundred fifty-five thousand, three hundred sixty-four".