255122461 has 4 divisors (see below), whose sum is σ = 278315424. Its totient is φ = 231929500.

The previous prime is 255122453. The next prime is 255122477. The reversal of 255122461 is 164221552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 255122461 - 2³ = 255122453 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 (255122411) 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, 11596465 + ... + 11596486.

It is an arithmetic number, because the mean of its divisors is an integer number (69578856).

Almost surely, 2^255122461 is an apocalyptic number.

It is an amenable number.

255122461 is a deficient number, since it is larger than the sum of its proper divisors (23192963).

255122461 is a wasteful number, since it uses less digits than its factorization.

255122461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192962.

The product of its digits is 4800, while the sum is 28.

The square root of 255122461 is about 15972.5533650697. The cubic root of 255122461 is about 634.2340660690.

Subtracting from 255122461 its reverse (164221552), we obtain a palindrome (90900909).

The spelling of 255122461 in words is "two hundred fifty-five million, one hundred twenty-two thousand, four hundred sixty-one".