23525852825 has 12 divisors (see below), whose sum is σ = 29499836220. Its totient is φ = 18609212160.

The previous prime is 23525852821. The next prime is 23525852827. The reversal of 23525852825 is 52825852532.

It can be written as a sum of positive squares in 6 ways, for example, as 8023859776 + 15501993049 = 89576^2 + 124507^2 .

It is not a de Polignac number, because 23525852825 - 2² = 23525852821 is a prime.

It is a super-2 number, since 2×23525852825² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23525852825.

It is not an unprimeable number, because it can be changed into a prime (23525852821) 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, 5284484 + ... + 5288933.

It is an arithmetic number, because the mean of its divisors is an integer number (2458319685).

Almost surely, 2^23525852825 is an apocalyptic number.

23525852825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23525852825 is a deficient number, since it is larger than the sum of its proper divisors (5973983395).

23525852825 is a wasteful number, since it uses less digits than its factorization.

23525852825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10573516 (or 10573511 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 47.

The spelling of 23525852825 in words is "twenty-three billion, five hundred twenty-five million, eight hundred fifty-two thousand, eight hundred twenty-five".