23603425 has 6 divisors (see below), whose sum is σ = 29268278. Its totient is φ = 18882720.

The previous prime is 23603399. The next prime is 23603441. The reversal of 23603425 is 52430632.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7667361 + 15936064 = 2769^2 + 3992^2 .

It is not a de Polignac number, because 23603425 - 2⁷ = 23603297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 944137 = 23603425 / (2 + 3 + 6 + 0 + 3 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23603425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472044 + ... + 472093.

Almost surely, 2^23603425 is an apocalyptic number.

23603425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23603425 is a deficient number, since it is larger than the sum of its proper divisors (5664853).

23603425 is an equidigital number, since it uses as much as digits as its factorization.

23603425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944147 (or 944142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 23603425 is about 4858.3356203539. The cubic root of 23603425 is about 286.8523037438.

The spelling of 23603425 in words is "twenty-three million, six hundred three thousand, four hundred twenty-five".