13525205555 has 4 divisors (see below), whose sum is σ = 16230246672. Its totient is φ = 10820164440.

The previous prime is 13525205549. The next prime is 13525205579. The reversal of 13525205555 is 55550252531.

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

It is not a de Polignac number, because 13525205555 - 2⁴ = 13525205539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352520551 + ... + 1352520560.

It is an arithmetic number, because the mean of its divisors is an integer number (4057561668).

Almost surely, 2^13525205555 is an apocalyptic number.

13525205555 is a deficient number, since it is larger than the sum of its proper divisors (2705041117).

13525205555 is an equidigital number, since it uses as much as digits as its factorization.

13525205555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705041116.

The product of its (nonzero) digits is 187500, while the sum is 38.

The spelling of 13525205555 in words is "thirteen billion, five hundred twenty-five million, two hundred five thousand, five hundred fifty-five".