15554056404 has 24 divisors (see below), whose sum is σ = 36296169280. Its totient is φ = 5184203904.

The previous prime is 15554056403. The next prime is 15554056477. The reversal of 15554056404 is 40465045551.

It is a super-2 number, since 2×15554056404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15554056403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89217 + ... + 197655.

Almost surely, 2^15554056404 is an apocalyptic number.

It is an amenable number.

15554056404 is an abundant number, since it is smaller than the sum of its proper divisors (20742112876).

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

15554056404 is a wasteful number, since it uses less digits than its factorization.

15554056404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120399 (or 120397 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 15554056404 in words is "fifteen billion, five hundred fifty-four million, fifty-six thousand, four hundred four".