255651122004 has 48 divisors (see below), whose sum is σ = 598719593472. Its totient is φ = 84903172992.

The previous prime is 255651121993. The next prime is 255651122029. The reversal of 255651122004 is 400221156552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4505997 + ... + 4562379.

It is an arithmetic number, because the mean of its divisors is an integer number (12473324864).

Almost surely, 2^255651122004 is an apocalyptic number.

It is an amenable number.

255651122004 is an abundant number, since it is smaller than the sum of its proper divisors (343068471468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255651122004 is a wasteful number, since it uses less digits than its factorization.

255651122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57776 (or 57774 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 255651122004 its reverse (400221156552), we get a palindrome (655872278556).

The spelling of 255651122004 in words is "two hundred fifty-five billion, six hundred fifty-one million, one hundred twenty-two thousand, four".