255411365601 has 48 divisors (see below), whose sum is σ = 411869232000. Its totient is φ = 140208026112.

The previous prime is 255411365591. The next prime is 255411365617. The reversal of 255411365601 is 106563114552.

It is not a de Polignac number, because 255411365601 - 2²¹ = 255409268449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255411365601.

It is not an unprimeable number, because it can be changed into a prime (255411365101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 697801 + ... + 998873.

It is an arithmetic number, because the mean of its divisors is an integer number (8580609000).

Almost surely, 2^255411365601 is an apocalyptic number.

255411365601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255411365601 is a deficient number, since it is larger than the sum of its proper divisors (156457866399).

255411365601 is a wasteful number, since it uses less digits than its factorization.

255411365601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301318 (or 301311 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 255411365601 in words is "two hundred fifty-five billion, four hundred eleven million, three hundred sixty-five thousand, six hundred one".