255515122 has 8 divisors (see below), whose sum is σ = 383665536. Its totient is φ = 127626612.

The previous prime is 255515101. The next prime is 255515123. The reversal of 255515122 is 221515552.

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

It is not an unprimeable number, because it can be changed into a prime (255515123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63018 + ... + 66949.

It is an arithmetic number, because the mean of its divisors is an integer number (47958192).

Almost surely, 2^255515122 is an apocalyptic number.

255515122 is a deficient number, since it is larger than the sum of its proper divisors (128150414).

255515122 is a wasteful number, since it uses less digits than its factorization.

255515122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130952.

The product of its digits is 5000, while the sum is 28.

The square root of 255515122 is about 15984.8403808108. The cubic root of 255515122 is about 634.5592841686.

The spelling of 255515122 in words is "two hundred fifty-five million, five hundred fifteen thousand, one hundred twenty-two".