255390553 has 8 divisors (see below), whose sum is σ = 279148896. Its totient is φ = 231722400.

The previous prime is 255390547. The next prime is 255390563. The reversal of 255390553 is 355093552.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 255390553 - 2⁵ = 255390521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255390563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16551 + ... + 28012.

It is an arithmetic number, because the mean of its divisors is an integer number (34893612).

Almost surely, 2^255390553 is an apocalyptic number.

It is an amenable number.

255390553 is a deficient number, since it is larger than the sum of its proper divisors (23758343).

255390553 is a wasteful number, since it uses less digits than its factorization.

255390553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45095.

The product of its (nonzero) digits is 101250, while the sum is 37.

The square root of 255390553 is about 15980.9434327264. The cubic root of 255390553 is about 634.4561470705.

The spelling of 255390553 in words is "two hundred fifty-five million, three hundred ninety thousand, five hundred fifty-three".