15225772 has 12 divisors (see below), whose sum is σ = 26696376. Its totient is φ = 7598240.

The previous prime is 15225757. The next prime is 15225773. The reversal of 15225772 is 27752251.

15225772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15225773) 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, 1129 + ... + 5632.

It is an arithmetic number, because the mean of its divisors is an integer number (2224698).

Almost surely, 2^15225772 is an apocalyptic number.

It is an amenable number.

15225772 is a deficient number, since it is larger than the sum of its proper divisors (11470604).

15225772 is a wasteful number, since it uses less digits than its factorization.

15225772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328 (or 7326 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 15225772 is about 3902.0215273625. The cubic root of 15225772 is about 247.8523878769.

The spelling of 15225772 in words is "fifteen million, two hundred twenty-five thousand, seven hundred seventy-two".