25248690 has 24 divisors (see below), whose sum is σ = 65646828. Its totient is φ = 6732960.

The previous prime is 25248679. The next prime is 25248721. The reversal of 25248690 is 9684252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20439441 + 4809249 = 4521^2 + 2193^2 .

It is a super-2 number, since 2×25248690² = 1274992693432200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140181 + ... + 140360.

Almost surely, 2^25248690 is an apocalyptic number.

25248690 is an abundant number, since it is smaller than the sum of its proper divisors (40398138).

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

25248690 is a wasteful number, since it uses less digits than its factorization.

25248690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280554 (or 280551 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 25248690 is about 5024.8074589978. The cubic root of 25248690 is about 293.3681418174.

The spelling of 25248690 in words is "twenty-five million, two hundred forty-eight thousand, six hundred ninety".