23888990025 has 18 divisors (see below), whose sum is σ = 42787835870. Its totient is φ = 12740794560.

The previous prime is 23888990003. The next prime is 23888990029. The reversal of 23888990025 is 52009988832.

It can be written as a sum of positive squares in 3 ways, for example, as 112275216 + 23776714809 = 10596^2 + 154197^2 .

It is not a de Polignac number, because 23888990025 - 2¹² = 23888985929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23888990029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 53086420 + ... + 53086869.

Almost surely, 2^23888990025 is an apocalyptic number.

23888990025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23888990025 is a deficient number, since it is larger than the sum of its proper divisors (18898845845).

23888990025 is a wasteful number, since it uses less digits than its factorization.

23888990025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106173305 (or 106173297 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 23888990025 in words is "twenty-three billion, eight hundred eighty-eight million, nine hundred ninety thousand, twenty-five".