23525040 has 320 divisors, whose sum is σ = 97136640. Its totient is φ = 4561920.

The previous prime is 23525027. The next prime is 23525041. The reversal of 23525040 is 4052532.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23524998 and 23525016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23525041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351087 + ... + 351153.

It is an arithmetic number, because the mean of its divisors is an integer number (303552).

Almost surely, 2^23525040 is an apocalyptic number.

23525040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23525040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48568320).

23525040 is an abundant number, since it is smaller than the sum of its proper divisors (73611600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23525040 is a wasteful number, since it uses less digits than its factorization.

23525040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23525040 is about 4850.2618486016. The cubic root of 23525040 is about 286.5344140868.

Adding to 23525040 its reverse (4052532), we get a palindrome (27577572).

The spelling of 23525040 in words is "twenty-three million, five hundred twenty-five thousand, forty".