255011555201 has 4 divisors (see below), whose sum is σ = 274627828692. Its totient is φ = 235395281712.

The previous prime is 255011555179. The next prime is 255011555209. The reversal of 255011555201 is 102555110552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36796446976 + 218215108225 = 191824^2 + 467135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255011555201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255011555209) 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, 9808136726 + ... + 9808136751.

It is an arithmetic number, because the mean of its divisors is an integer number (68656957173).

Almost surely, 2^255011555201 is an apocalyptic number.

It is an amenable number.

255011555201 is a deficient number, since it is larger than the sum of its proper divisors (19616273491).

255011555201 is a wasteful number, since it uses less digits than its factorization.

255011555201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19616273490.

The product of its (nonzero) digits is 12500, while the sum is 32.

Adding to 255011555201 its reverse (102555110552), we get a palindrome (357566665753).

The spelling of 255011555201 in words is "two hundred fifty-five billion, eleven million, five hundred fifty-five thousand, two hundred one".