25372224 has 56 divisors (see below), whose sum is σ = 74594720. Its totient is φ = 8456832.

The previous prime is 25372223. The next prime is 25372231. The reversal of 25372224 is 42227352.

It is a hoax number, since the sum of its digits (27) 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 (27).

It is not an unprimeable number, because it can be changed into a prime (25372223) 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, 5614 + ... + 9069.

Almost surely, 2^25372224 is an apocalyptic number.

25372224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25372224 is an abundant number, since it is smaller than the sum of its proper divisors (49222496).

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

25372224 is a wasteful number, since it uses less digits than its factorization.

25372224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14704 (or 14688 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 25372224 is about 5037.0848712326. The cubic root of 25372224 is about 293.8458166980.

Adding to 25372224 its reverse (42227352), we get a palindrome (67599576).

It can be divided in two parts, 2537 and 2224, that added together give a square (4761 = 69²).

The spelling of 25372224 in words is "twenty-five million, three hundred seventy-two thousand, two hundred twenty-four".