521104255 has 16 divisors (see below), whose sum is σ = 717387264. Its totient is φ = 355963680.

The previous prime is 521104253. The next prime is 521104271. The reversal of 521104255 is 552401125.

It is not a de Polignac number, because 521104255 - 2¹ = 521104253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521104253) 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, 19101 + ... + 37510.

It is an arithmetic number, because the mean of its divisors is an integer number (44836704).

Almost surely, 2^521104255 is an apocalyptic number.

521104255 is a deficient number, since it is larger than the sum of its proper divisors (196283009).

521104255 is a wasteful number, since it uses less digits than its factorization.

521104255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56886.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 521104255 is about 22827.7080540294. The cubic root of 521104255 is about 804.7139680526.

It can be divided in two parts, 52110 and 4255, that added together give a palindrome (56365).

The spelling of 521104255 in words is "five hundred twenty-one million, one hundred four thousand, two hundred fifty-five".