15455455589 has 12 divisors (see below), whose sum is σ = 18925048800. Its totient is φ = 12550294008.

The previous prime is 15455455579. The next prime is 15455455649. The reversal of 15455455589 is 98555455451.

It is not a de Polignac number, because 15455455589 - 2²⁰ = 15454407013 is a prime.

It is a super-2 number, since 2×15455455589² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15455455549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8299529 + ... + 8301390.

It is an arithmetic number, because the mean of its divisors is an integer number (1577087400).

Almost surely, 2^15455455589 is an apocalyptic number.

15455455589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15455455589 is a deficient number, since it is larger than the sum of its proper divisors (3469593211).

15455455589 is a wasteful number, since it uses less digits than its factorization.

15455455589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600952 (or 16600945 counting only the distinct ones).

The product of its digits is 18000000, while the sum is 56.

The spelling of 15455455589 in words is "fifteen billion, four hundred fifty-five million, four hundred fifty-five thousand, five hundred eighty-nine".