255023551 has 8 divisors (see below), whose sum is σ = 264121344. Its totient is φ = 246078840.

The previous prime is 255023539. The next prime is 255023581. The reversal of 255023551 is 155320552.

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

It is not a de Polignac number, because 255023551 - 2⁵ = 255023519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255023501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34875 + ... + 41548.

It is an arithmetic number, because the mean of its divisors is an integer number (33015168).

Almost surely, 2^255023551 is an apocalyptic number.

255023551 is a deficient number, since it is larger than the sum of its proper divisors (9097793).

255023551 is an equidigital number, since it uses as much as digits as its factorization.

255023551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76541.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 255023551 is about 15969.4568160598. The cubic root of 255023551 is about 634.1520921025.

The spelling of 255023551 in words is "two hundred fifty-five million, twenty-three thousand, five hundred fifty-one".