15397425 has 24 divisors (see below), whose sum is σ = 28286880. Its totient is φ = 8211600.

The previous prime is 15397423. The next prime is 15397451. The reversal of 15397425 is 52479351.

It is not a de Polignac number, because 15397425 - 2¹ = 15397423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15397425.

It is not an unprimeable number, because it can be changed into a prime (15397423) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10731 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (1178620).

Almost surely, 2^15397425 is an apocalyptic number.

15397425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15397425 is a deficient number, since it is larger than the sum of its proper divisors (12889455).

15397425 is a wasteful number, since it uses less digits than its factorization.

15397425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22830 (or 22819 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 15397425 is about 3923.9552749745. The cubic root of 15397425 is about 248.7803259240.

The spelling of 15397425 in words is "fifteen million, three hundred ninety-seven thousand, four hundred twenty-five".