15545152 has 42 divisors (see below), whose sum is σ = 35890962. Its totient is φ = 6660864.

The previous prime is 15545149. The next prime is 15545161. The reversal of 15545152 is 25154551.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 614656 = 3864^2 + 784^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 15545152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658 + ... + 5614.

Almost surely, 2^15545152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15545152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17945481).

15545152 is an abundant number, since it is smaller than the sum of its proper divisors (20345810).

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

15545152 is an equidigital number, since it uses as much as digits as its factorization.

15545152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4966 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 15545152 is about 3942.7340767544. The cubic root of 15545152 is about 249.5734165201.

The spelling of 15545152 in words is "fifteen million, five hundred forty-five thousand, one hundred fifty-two".