255638241001 has 16 divisors (see below), whose sum is σ = 310018318848. Its totient is φ = 207601545600.

The previous prime is 255638240999. The next prime is 255638241031. The reversal of 255638241001 is 100142836552.

It is a cyclic number.

It is not a de Polignac number, because 255638241001 - 2¹ = 255638240999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255638241031) 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, 28829116 + ... + 28837981.

It is an arithmetic number, because the mean of its divisors is an integer number (19376144928).

Almost surely, 2^255638241001 is an apocalyptic number.

It is an amenable number.

255638241001 is a deficient number, since it is larger than the sum of its proper divisors (54380077847).

255638241001 is a wasteful number, since it uses less digits than its factorization.

255638241001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57667152.

The product of its (nonzero) digits is 57600, while the sum is 37.

It can be divided in two parts, 25563824 and 1001, that added together give a triangular number (25564825 = T₇₁₅₀).

The spelling of 255638241001 in words is "two hundred fifty-five billion, six hundred thirty-eight million, two hundred forty-one thousand, one".