15145552 has 20 divisors (see below), whose sum is σ = 29546100. Its totient is φ = 7520768.

The previous prime is 15145549. The next prime is 15145561. The reversal of 15145552 is 25554151.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 11048976 = 2024^2 + 3324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15145552.

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 3 ways as a sum of consecutive naturals, for example, 793 + ... + 5560.

It is an arithmetic number, because the mean of its divisors is an integer number (1477305).

Almost surely, 2^15145552 is an apocalyptic number.

It is an amenable number.

15145552 is a deficient number, since it is larger than the sum of its proper divisors (14400548).

15145552 is a wasteful number, since it uses less digits than its factorization.

15145552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510 (or 6504 counting only the distinct ones).

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

The square root of 15145552 is about 3891.7286647453. The cubic root of 15145552 is about 247.4163346770.

The spelling of 15145552 in words is "fifteen million, one hundred forty-five thousand, five hundred fifty-two".