25403172 has 24 divisors (see below), whose sum is σ = 59404800. Its totient is φ = 8449056.

The previous prime is 25403129. The next prime is 25403173. The reversal of 25403172 is 27130452.

It is a super-3 number, since 3×25403172³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (25403173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4029 + ... + 8187.

It is an arithmetic number, because the mean of its divisors is an integer number (2475200).

Almost surely, 2^25403172 is an apocalyptic number.

It is an amenable number.

25403172 is an abundant number, since it is smaller than the sum of its proper divisors (34001628).

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

25403172 is a wasteful number, since it uses less digits than its factorization.

25403172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4673 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 25403172 is about 5040.1559499682. The cubic root of 25403172 is about 293.9652418532.

The spelling of 25403172 in words is "twenty-five million, four hundred three thousand, one hundred seventy-two".