25498331 has 4 divisors (see below), whose sum is σ = 25511232. Its totient is φ = 25485432.

The previous prime is 25498307. The next prime is 25498349. The reversal of 25498331 is 13389452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25498331 - 2⁶ = 25498267 is a prime.

It is a super-2 number, since 2×25498331² = 1300329767571122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25498291 and 25498300.

It is not an unprimeable number, because it can be changed into a prime (25498381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2795 + ... + 7668.

It is an arithmetic number, because the mean of its divisors is an integer number (6377808).

Almost surely, 2^25498331 is an apocalyptic number.

25498331 is a deficient number, since it is larger than the sum of its proper divisors (12901).

25498331 is a wasteful number, since it uses less digits than its factorization.

25498331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12900.

The product of its digits is 25920, while the sum is 35.

The square root of 25498331 is about 5049.5872108520. The cubic root of 25498331 is about 294.3318441280.

The spelling of 25498331 in words is "twenty-five million, four hundred ninety-eight thousand, three hundred thirty-one".