25498725 has 48 divisors (see below), whose sum is σ = 51032448. Its totient is φ = 10967040.

The previous prime is 25498721. The next prime is 25498747. The reversal of 25498725 is 52789452.

It is not a de Polignac number, because 25498725 - 2² = 25498721 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25498721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7497 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (1063176).

Almost surely, 2^25498725 is an apocalyptic number.

25498725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25498725 is an abundant number, since it is smaller than the sum of its proper divisors (25533723).

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

25498725 is a wasteful number, since it uses less digits than its factorization.

25498725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2889 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 25498725 is about 5049.6262237912. The cubic root of 25498725 is about 294.3333601246. Note that the first 4 decimals are identical.

The spelling of 25498725 in words is "twenty-five million, four hundred ninety-eight thousand, seven hundred twenty-five".