15552155 has 4 divisors (see below), whose sum is σ = 18662592. Its totient is φ = 12441720.

The previous prime is 15552151. The next prime is 15552157. The reversal of 15552155 is 55125551.

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

It is not a de Polignac number, because 15552155 - 2² = 15552151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15552151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555211 + ... + 1555220.

It is an arithmetic number, because the mean of its divisors is an integer number (4665648).

Almost surely, 2^15552155 is an apocalyptic number.

15552155 is a deficient number, since it is larger than the sum of its proper divisors (3110437).

15552155 is an equidigital number, since it uses as much as digits as its factorization.

15552155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110436.

The product of its digits is 6250, while the sum is 29.

The square root of 15552155 is about 3943.6220660707. The cubic root of 15552155 is about 249.6108880150.

The spelling of 15552155 in words is "fifteen million, five hundred fifty-two thousand, one hundred fifty-five".