255302553 has 32 divisors (see below), whose sum is σ = 398011392. Its totient is φ = 143985600.

The previous prime is 255302533. The next prime is 255302561. The reversal of 255302553 is 355203552.

It is not a de Polignac number, because 255302553 - 2⁵ = 255302521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255302553.

It is not an unprimeable number, because it can be changed into a prime (255302503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23538 + ... + 32628.

It is an arithmetic number, because the mean of its divisors is an integer number (12437856).

Almost surely, 2^255302553 is an apocalyptic number.

255302553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

255302553 is a deficient number, since it is larger than the sum of its proper divisors (142708839).

255302553 is a wasteful number, since it uses less digits than its factorization.

255302553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 255302553 is about 15978.1899162577. The cubic root of 255302553 is about 634.3832671171.

Subtracting 255302553 from its reverse (355203552), we obtain a palindrome (99900999).

The spelling of 255302553 in words is "two hundred fifty-five million, three hundred two thousand, five hundred fifty-three".