25237890 has 48 divisors (see below), whose sum is σ = 69076800. Its totient is φ = 6375456.

The previous prime is 25237889. The next prime is 25237897. The reversal of 25237890 is 9873252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25237897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5670 + ... + 9089.

It is an arithmetic number, because the mean of its divisors is an integer number (1439100).

Almost surely, 2^25237890 is an apocalyptic number.

25237890 is an abundant number, since it is smaller than the sum of its proper divisors (43838910).

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

25237890 is a wasteful number, since it uses less digits than its factorization.

25237890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791 (or 14788 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 25237890 is about 5023.7326760089. The cubic root of 25237890 is about 293.3263069368.

The spelling of 25237890 in words is "twenty-five million, two hundred thirty-seven thousand, eight hundred ninety".