51255888 has 20 divisors (see below), whose sum is σ = 132411168. Its totient is φ = 17085280.

The previous prime is 51255887. The next prime is 51255899. The reversal of 51255888 is 88855215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51255887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533868 + ... + 533963.

Almost surely, 2^51255888 is an apocalyptic number.

It is an amenable number.

51255888 is an abundant number, since it is smaller than the sum of its proper divisors (81155280).

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

51255888 is a wasteful number, since it uses less digits than its factorization.

51255888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067842 (or 1067836 counting only the distinct ones).

The product of its digits is 128000, while the sum is 42.

The square root of 51255888 is about 7159.3217555855. The cubic root of 51255888 is about 371.4621664738.

The spelling of 51255888 in words is "fifty-one million, two hundred fifty-five thousand, eight hundred eighty-eight".