51255885 has 16 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 27255360.

The previous prime is 51255877. The next prime is 51255887. The reversal of 51255885 is 58855215.

It is not a de Polignac number, because 51255885 - 2³ = 51255877 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 340 + ... + 10130.

It is an arithmetic number, because the mean of its divisors is an integer number (5140800).

Almost surely, 2^51255885 is an apocalyptic number.

It is an amenable number.

51255885 is a deficient number, since it is larger than the sum of its proper divisors (30996915).

51255885 is a wasteful number, since it uses less digits than its factorization.

51255885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10148.

The product of its digits is 80000, while the sum is 39.

The square root of 51255885 is about 7159.3215460685. The cubic root of 51255885 is about 371.4621592266.

The spelling of 51255885 in words is "fifty-one million, two hundred fifty-five thousand, eight hundred eighty-five".