15552655 has 4 divisors (see below), whose sum is σ = 18663192. Its totient is φ = 12442120.

The previous prime is 15552631. The next prime is 15552679. The reversal of 15552655 is 55625551.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (15552631) and next prime (15552679).

It is not a de Polignac number, because 15552655 - 2⁹ = 15552143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15552655.

It is a congruent number.

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, 1555261 + ... + 1555270.

It is an arithmetic number, because the mean of its divisors is an integer number (4665798).

Almost surely, 2^15552655 is an apocalyptic number.

15552655 is a deficient number, since it is larger than the sum of its proper divisors (3110537).

15552655 is an equidigital number, since it uses as much as digits as its factorization.

15552655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110536.

The product of its digits is 37500, while the sum is 34.

The square root of 15552655 is about 3943.6854590598. The cubic root of 15552655 is about 249.6135629735.

The spelling of 15552655 in words is "fifteen million, five hundred fifty-two thousand, six hundred fifty-five".