15625272 has 64 divisors (see below), whose sum is σ = 42809760. Its totient is φ = 4723200.

The previous prime is 15625243. The next prime is 15625283. The reversal of 15625272 is 27252651.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18622 + ... + 19442.

Almost surely, 2^15625272 is an apocalyptic number.

15625272 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 15625272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21404880).

15625272 is an abundant number, since it is smaller than the sum of its proper divisors (27184488).

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

15625272 is a wasteful number, since it uses less digits than its factorization.

15625272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 900 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 15625272 is about 3952.8814806417. The cubic root of 15625272 is about 250.0014506582.

The spelling of 15625272 in words is "fifteen million, six hundred twenty-five thousand, two hundred seventy-two".