23542225 has 24 divisors (see below), whose sum is σ = 34819200. Its totient is φ = 15438720.

The previous prime is 23542219. The next prime is 23542243. The reversal of 23542225 is 52224532.

It is a happy number.

It is not a de Polignac number, because 23542225 - 2⁵ = 23542193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 23542225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1101 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (1450800).

Almost surely, 2^23542225 is an apocalyptic number.

23542225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23542225 is a deficient number, since it is larger than the sum of its proper divisors (11276975).

23542225 is a wasteful number, since it uses less digits than its factorization.

23542225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5884 counting only the distinct ones).

The product of its digits is 4800, while the sum is 25.

The square root of 23542225 is about 4852.0330790299. The cubic root of 23542225 is about 286.6041680649.

Adding to 23542225 its reverse (52224532), we get a palindrome (75766757).

The spelling of 23542225 in words is "twenty-three million, five hundred forty-two thousand, two hundred twenty-five".