255532551 has 8 divisors (see below), whose sum is σ = 341389440. Its totient is φ = 170015352.

The previous prime is 255532549. The next prime is 255532567. The reversal of 255532551 is 155235552.

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

It is not a de Polignac number, because 255532551 - 2¹ = 255532549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255532051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83161 + ... + 86178.

It is an arithmetic number, because the mean of its divisors is an integer number (42673680).

Almost surely, 2^255532551 is an apocalyptic number.

255532551 is a deficient number, since it is larger than the sum of its proper divisors (85856889).

255532551 is a wasteful number, since it uses less digits than its factorization.

255532551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169845.

The product of its digits is 37500, while the sum is 33.

The square root of 255532551 is about 15985.3855443026. The cubic root of 255532551 is about 634.5737118630.

The spelling of 255532551 in words is "two hundred fifty-five million, five hundred thirty-two thousand, five hundred fifty-one".