25228493 has 16 divisors (see below), whose sum is σ = 28169856. Its totient is φ = 22471680.

The previous prime is 25228481. The next prime is 25228507. The reversal of 25228493 is 39482252.

It is a cyclic number.

It is not a de Polignac number, because 25228493 - 2⁶ = 25228429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43898 + ... + 44468.

It is an arithmetic number, because the mean of its divisors is an integer number (1760616).

Almost surely, 2^25228493 is an apocalyptic number.

25228493 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25228493 is a deficient number, since it is larger than the sum of its proper divisors (2941363).

25228493 is a wasteful number, since it uses less digits than its factorization.

25228493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its digits is 34560, while the sum is 35.

The square root of 25228493 is about 5022.7973281828. The cubic root of 25228493 is about 293.2898970061.

The spelling of 25228493 in words is "twenty-five million, two hundred twenty-eight thousand, four hundred ninety-three".