255520771001 has 8 divisors (see below), whose sum is σ = 265496296320. Its totient is φ = 245622876688.

The previous prime is 255520770991. The next prime is 255520771063. The reversal of 255520771001 is 100177025552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255520771001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255520771501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19401041 + ... + 19414206.

It is an arithmetic number, because the mean of its divisors is an integer number (33187037040).

Almost surely, 2^255520771001 is an apocalyptic number.

It is an amenable number.

255520771001 is a deficient number, since it is larger than the sum of its proper divisors (9975525319).

255520771001 is a wasteful number, since it uses less digits than its factorization.

255520771001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38815503.

The product of its (nonzero) digits is 24500, while the sum is 35.

Adding to 255520771001 its reverse (100177025552), we get a palindrome (355697796553).

The spelling of 255520771001 in words is "two hundred fifty-five billion, five hundred twenty million, seven hundred seventy-one thousand, one".