15573252 has 12 divisors (see below), whose sum is σ = 36337616. Its totient is φ = 5191080.

The previous prime is 15573223. The next prime is 15573281. The reversal of 15573252 is 25237551.

It is an interprime number because it is at equal distance from previous prime (15573223) and next prime (15573281).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648874 + ... + 648897.

Almost surely, 2^15573252 is an apocalyptic number.

15573252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15573252 is an abundant number, since it is smaller than the sum of its proper divisors (20764364).

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

15573252 is a wasteful number, since it uses less digits than its factorization.

15573252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297778 (or 1297776 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 15573252 is about 3946.2959848445. The cubic root of 15573252 is about 249.7237054244.

The spelling of 15573252 in words is "fifteen million, five hundred seventy-three thousand, two hundred fifty-two".