13556225420 has 12 divisors (see below), whose sum is σ = 28468073424. Its totient is φ = 5422490160.

The previous prime is 13556225399. The next prime is 13556225503. The reversal of 13556225420 is 2452265531.

It is a super-3 number, since 3×13556225420³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338905616 + ... + 338905655.

It is an arithmetic number, because the mean of its divisors is an integer number (2372339452).

Almost surely, 2^13556225420 is an apocalyptic number.

13556225420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13556225420 is an abundant number, since it is smaller than the sum of its proper divisors (14911848004).

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

13556225420 is a wasteful number, since it uses less digits than its factorization.

13556225420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677811280 (or 677811278 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 13556225420 in words is "thirteen billion, five hundred fifty-six million, two hundred twenty-five thousand, four hundred twenty".