25424238 has 24 divisors (see below), whose sum is σ = 59150952. Its totient is φ = 7263984.

The previous prime is 25424237. The next prime is 25424263. The reversal of 25424238 is 83242452.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25424237) 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, 42945 + ... + 43532.

It is an arithmetic number, because the mean of its divisors is an integer number (2464623).

Almost surely, 2^25424238 is an apocalyptic number.

25424238 is an abundant number, since it is smaller than the sum of its proper divisors (33726714).

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

25424238 is a wasteful number, since it uses less digits than its factorization.

25424238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86496 (or 86489 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 25424238 is about 5042.2453331824. The cubic root of 25424238 is about 294.0464779128.

The spelling of 25424238 in words is "twenty-five million, four hundred twenty-four thousand, two hundred thirty-eight".