25493028 has 48 divisors (see below), whose sum is σ = 65372160. Its totient is φ = 7668000.

The previous prime is 25492991. The next prime is 25493033. The reversal of 25493028 is 82039452.

It is a happy number.

It is a super-3 number, since 3×25493028³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 25493028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19293 + ... + 20571.

It is an arithmetic number, because the mean of its divisors is an integer number (1361920).

Almost surely, 2^25493028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25493028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32686080).

25493028 is an abundant number, since it is smaller than the sum of its proper divisors (39879132).

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

25493028 is a wasteful number, since it uses less digits than its factorization.

25493028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 25493028 is about 5049.0620911215. The cubic root of 25493028 is about 294.3114382175.

The spelling of 25493028 in words is "twenty-five million, four hundred ninety-three thousand, twenty-eight".