25423660 has 12 divisors (see below), whose sum is σ = 53389728. Its totient is φ = 10169456.

The previous prime is 25423639. The next prime is 25423667. The reversal of 25423660 is 6632452.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25423667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635572 + ... + 635611.

It is an arithmetic number, because the mean of its divisors is an integer number (4449144).

Almost surely, 2^25423660 is an apocalyptic number.

25423660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25423660 is an abundant number, since it is smaller than the sum of its proper divisors (27966068).

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

25423660 is a wasteful number, since it uses less digits than its factorization.

25423660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271192 (or 1271190 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25423660 is about 5042.1880171211. The cubic root of 25423660 is about 294.0442495910.

The spelling of 25423660 in words is "twenty-five million, four hundred twenty-three thousand, six hundred sixty".