255225053631 has 4 divisors (see below), whose sum is σ = 340300071512. Its totient is φ = 170150035752.

The previous prime is 255225053591. The next prime is 255225053639. The reversal of 255225053631 is 136350522552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255225053631 - 2¹⁵ = 255225020863 is a prime.

It is a super-2 number, since 2×255225053631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255225053631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255225053639) 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, 42537508936 + ... + 42537508941.

It is an arithmetic number, because the mean of its divisors is an integer number (85075017878).

Almost surely, 2^255225053631 is an apocalyptic number.

255225053631 is a deficient number, since it is larger than the sum of its proper divisors (85075017881).

255225053631 is an equidigital number, since it uses as much as digits as its factorization.

255225053631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85075017880.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 255225053631 in words is "two hundred fifty-five billion, two hundred twenty-five million, fifty-three thousand, six hundred thirty-one".