13256602554 has 32 divisors (see below), whose sum is σ = 29537262720. Its totient is φ = 3938300352.

The previous prime is 13256602553. The next prime is 13256602559. The reversal of 13256602554 is 45520665231.

It is a super-2 number, since 2×13256602554² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (13256602553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2928022 + ... + 2932545.

It is an arithmetic number, because the mean of its divisors is an integer number (923039460).

Almost surely, 2^13256602554 is an apocalyptic number.

13256602554 is an abundant number, since it is smaller than the sum of its proper divisors (16280660166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13256602554 is a wasteful number, since it uses less digits than its factorization.

13256602554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860614.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 13256602554 in words is "thirteen billion, two hundred fifty-six million, six hundred two thousand, five hundred fifty-four".