15255552 has 96 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 4669440.

The previous prime is 15255547. The next prime is 15255587. The reversal of 15255552 is 25555251.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79777 + ... + 79967.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^15255552 is an apocalyptic number.

15255552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15255552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22014720).

15255552 is an abundant number, since it is smaller than the sum of its proper divisors (28773888).

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

15255552 is a wasteful number, since it uses less digits than its factorization.

15255552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 209 counting only the distinct ones).

The product of its digits is 12500, while the sum is 30.

The square root of 15255552 is about 3905.8356340225. The cubic root of 15255552 is about 248.0138736602.

The spelling of 15255552 in words is "fifteen million, two hundred fifty-five thousand, five hundred fifty-two".