15725253 has 4 divisors (see below), whose sum is σ = 20967008. Its totient is φ = 10483500.

The previous prime is 15725243. The next prime is 15725273. The reversal of 15725253 is 35252751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15725253 - 2¹² = 15721157 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 15725253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15725233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2620873 + ... + 2620878.

It is an arithmetic number, because the mean of its divisors is an integer number (5241752).

Almost surely, 2^15725253 is an apocalyptic number.

It is an amenable number.

15725253 is a deficient number, since it is larger than the sum of its proper divisors (5241755).

15725253 is an equidigital number, since it uses as much as digits as its factorization.

15725253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241754.

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

The square root of 15725253 is about 3965.5079119830. The cubic root of 15725253 is about 250.5335431833.

The spelling of 15725253 in words is "fifteen million, seven hundred twenty-five thousand, two hundred fifty-three".