13557604425 has 24 divisors (see below), whose sum is σ = 22730955840. Its totient is φ = 7128878400.

The previous prime is 13557604399. The next prime is 13557604441. The reversal of 13557604425 is 52440675531.

It is not a de Polignac number, because 13557604425 - 2¹⁹ = 13557080137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1267690 + ... + 1278339.

It is an arithmetic number, because the mean of its divisors is an integer number (947123160).

Almost surely, 2^13557604425 is an apocalyptic number.

13557604425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13557604425 is a deficient number, since it is larger than the sum of its proper divisors (9173351415).

13557604425 is a wasteful number, since it uses less digits than its factorization.

13557604425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546113 (or 2546108 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 13557604425 in words is "thirteen billion, five hundred fifty-seven million, six hundred four thousand, four hundred twenty-five".