255549949023 has 16 divisors (see below), whose sum is σ = 368360289920. Its totient is φ = 157037805216.

The previous prime is 255549949013. The next prime is 255549949043. The reversal of 255549949023 is 320949945552.

It is a happy number.

It is not a de Polignac number, because 255549949023 - 2²⁶ = 255482840159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255549949013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60583465 + ... + 60587682.

It is an arithmetic number, because the mean of its divisors is an integer number (23022518120).

Almost surely, 2^255549949023 is an apocalyptic number.

255549949023 is a deficient number, since it is larger than the sum of its proper divisors (112810340897).

255549949023 is a wasteful number, since it uses less digits than its factorization.

255549949023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121171206.

The product of its (nonzero) digits is 17496000, while the sum is 57.

The spelling of 255549949023 in words is "two hundred fifty-five billion, five hundred forty-nine million, nine hundred forty-nine thousand, twenty-three".