23005625 has 10 divisors (see below), whose sum is σ = 28748610. Its totient is φ = 18404000.

The previous prime is 23005621. The next prime is 23005639. The reversal of 23005625 is 52650032.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 10523536 + 12482089 = 3244^2 + 3533^2 .

It is not a de Polignac number, because 23005625 - 2² = 23005621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23005625.

It is not an unprimeable number, because it can be changed into a prime (23005621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17780 + ... + 19029.

It is an arithmetic number, because the mean of its divisors is an integer number (2874861).

Almost surely, 2^23005625 is an apocalyptic number.

23005625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23005625 is a deficient number, since it is larger than the sum of its proper divisors (5742985).

23005625 is an frugal number, since it uses more digits than its factorization.

23005625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36829 (or 36814 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 23005625 is about 4796.4179342505. The cubic root of 23005625 is about 284.4098797936.

Adding to 23005625 its reverse (52650032), we get a palindrome (75655657).

The spelling of 23005625 in words is "twenty-three million, five thousand, six hundred twenty-five".