25220898 has 24 divisors (see below), whose sum is σ = 55678428. Its totient is φ = 8248032.

The previous prime is 25220869. The next prime is 25220929. The reversal of 25220898 is 89802252.

It can be written as a sum of positive squares in 2 ways, for example, as 23068809 + 2152089 = 4803^2 + 1467^2 .

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, 12265 + ... + 14172.

Almost surely, 2^25220898 is an apocalyptic number.

25220898 is an abundant number, since it is smaller than the sum of its proper divisors (30457530).

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

25220898 is a wasteful number, since it uses less digits than its factorization.

25220898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26498 (or 26495 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25220898 is about 5022.0412184688. The cubic root of 25220898 is about 293.2604625576.

The spelling of 25220898 in words is "twenty-five million, two hundred twenty thousand, eight hundred ninety-eight".