15223425 has 48 divisors (see below), whose sum is σ = 29140992. Its totient is φ = 6868800.

The previous prime is 15223399. The next prime is 15223433. The reversal of 15223425 is 52432251.

It is not a de Polignac number, because 15223425 - 2⁵ = 15223393 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15223395 and 15223404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56040 + ... + 56310.

It is an arithmetic number, because the mean of its divisors is an integer number (607104).

Almost surely, 2^15223425 is an apocalyptic number.

15223425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15223425 is a deficient number, since it is larger than the sum of its proper divisors (13917567).

15223425 is a wasteful number, since it uses less digits than its factorization.

15223425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 393 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 15223425 is about 3901.7207742226. The cubic root of 15223425 is about 247.8396520269.

Adding to 15223425 its reverse (52432251), we get a palindrome (67655676).

The spelling of 15223425 in words is "fifteen million, two hundred twenty-three thousand, four hundred twenty-five".