255022551 has 48 divisors (see below), whose sum is σ = 449619456. Its totient is φ = 136116288.

The previous prime is 255022529. The next prime is 255022561. The reversal of 255022551 is 155220552.

It is not a de Polignac number, because 255022551 - 2⁶ = 255022487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255022561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60261 + ... + 64353.

It is an arithmetic number, because the mean of its divisors is an integer number (9367072).

Almost surely, 2^255022551 is an apocalyptic number.

255022551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

255022551 is a deficient number, since it is larger than the sum of its proper divisors (194596905).

255022551 is a wasteful number, since it uses less digits than its factorization.

255022551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172 (or 4169 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 255022551 is about 15969.4255062604. The cubic root of 255022551 is about 634.1512632209.

The spelling of 255022551 in words is "two hundred fifty-five million, twenty-two thousand, five hundred fifty-one".