25426998 has 24 divisors (see below), whose sum is σ = 55663608. Its totient is φ = 8387712.

The previous prime is 25426991. The next prime is 25427069. The reversal of 25426998 is 89962452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426991) 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, 5536 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (2319317).

Almost surely, 2^25426998 is an apocalyptic number.

25426998 is an abundant number, since it is smaller than the sum of its proper divisors (30236610).

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

25426998 is a wasteful number, since it uses less digits than its factorization.

25426998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668 (or 14665 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 25426998 is about 5042.5190133504. The cubic root of 25426998 is about 294.0571178765.

The spelling of 25426998 in words is "twenty-five million, four hundred twenty-six thousand, nine hundred ninety-eight".