15455554889 has 8 divisors (see below), whose sum is σ = 15532950048. Its totient is φ = 15378336000.

The previous prime is 15455554867. The next prime is 15455554903. The reversal of 15455554889 is 98845555451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15455554889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15455554819) 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, 133514 + ... + 220764.

It is an arithmetic number, because the mean of its divisors is an integer number (1941618756).

Almost surely, 2^15455554889 is an apocalyptic number.

It is an amenable number.

15455554889 is a deficient number, since it is larger than the sum of its proper divisors (77395159).

15455554889 is an equidigital number, since it uses as much as digits as its factorization.

15455554889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88135.

The product of its digits is 28800000, while the sum is 59.

The spelling of 15455554889 in words is "fifteen billion, four hundred fifty-five million, five hundred fifty-four thousand, eight hundred eighty-nine".