15423425 has 12 divisors (see below), whose sum is σ = 19175856. Its totient is φ = 12306000.

The previous prime is 15423329. The next prime is 15423427. The reversal of 15423425 is 52432451.

It is a happy number.

It is not a de Polignac number, because 15423425 - 2¹⁶ = 15357889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15423394 and 15423403.

It is not an unprimeable number, because it can be changed into a prime (15423427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14150 + ... + 15200.

It is an arithmetic number, because the mean of its divisors is an integer number (1597988).

Almost surely, 2^15423425 is an apocalyptic number.

It is an amenable number.

15423425 is a deficient number, since it is larger than the sum of its proper divisors (3752431).

15423425 is a wasteful number, since it uses less digits than its factorization.

15423425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1643 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 15423425 is about 3927.2668613172. The cubic root of 15423425 is about 248.9202768382.

Adding to 15423425 its reverse (52432451), we get a palindrome (67855876).

The spelling of 15423425 in words is "fifteen million, four hundred twenty-three thousand, four hundred twenty-five".