25138098 has 12 divisors (see below), whose sum is σ = 54465918. Its totient is φ = 8379360.

The previous prime is 25138079. The next prime is 25138129. The reversal of 25138098 is 89083152.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 4915089 = 4497^2 + 2217^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698263 + ... + 698298.

Almost surely, 2^25138098 is an apocalyptic number.

25138098 is an abundant number, since it is smaller than the sum of its proper divisors (29327820).

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

25138098 is a wasteful number, since it uses less digits than its factorization.

25138098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396569 (or 1396566 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 25138098 is about 5013.7907814347. The cubic root of 25138098 is about 292.9391868260.

The spelling of 25138098 in words is "twenty-five million, one hundred thirty-eight thousand, ninety-eight".