51255886 has 8 divisors (see below), whose sum is σ = 83873304. Its totient is φ = 23298120.

The previous prime is 51255877. The next prime is 51255887. The reversal of 51255886 is 68855215.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1164885 + ... + 1164928.

It is an arithmetic number, because the mean of its divisors is an integer number (10484163).

Almost surely, 2^51255886 is an apocalyptic number.

51255886 is a deficient number, since it is larger than the sum of its proper divisors (32617418).

51255886 is a wasteful number, since it uses less digits than its factorization.

51255886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329826.

The product of its digits is 96000, while the sum is 40.

The square root of 51255886 is about 7159.3216159075. The cubic root of 51255886 is about 371.4621616424.

It can be divided in two parts, 5125 and 5886, that added together give a palindrome (11011).

The spelling of 51255886 in words is "fifty-one million, two hundred fifty-five thousand, eight hundred eighty-six".