25293216 has 72 divisors (see below), whose sum is σ = 71940960. Its totient is φ = 7777536.

The previous prime is 25293211. The next prime is 25293221. The reversal of 25293216 is 61239252.

It is an interprime number because it is at equal distance from previous prime (25293211) and next prime (25293221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25293211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15445 + ... + 17003.

It is an arithmetic number, because the mean of its divisors is an integer number (999180).

Almost surely, 2^25293216 is an apocalyptic number.

25293216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25293216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35970480).

25293216 is an abundant number, since it is smaller than the sum of its proper divisors (46647744).

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

25293216 is a wasteful number, since it uses less digits than its factorization.

25293216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1577 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 25293216 is about 5029.2361249001. The cubic root of 25293216 is about 293.5404918658.

The spelling of 25293216 in words is "twenty-five million, two hundred ninety-three thousand, two hundred sixteen".