25022920 has 32 divisors (see below), whose sum is σ = 60633720. Its totient is φ = 9239040.

The previous prime is 25022917. The next prime is 25022927. The reversal of 25022920 is 2922052.

It can be written as a sum of positive squares in 4 ways, for example, as 18335524 + 6687396 = 4282^2 + 2586^2 .

It is a super-2 number, since 2×25022920² = 1252293050652800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25022891 and 25022900.

It is not an unprimeable number, because it can be changed into a prime (25022927) 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, 23541 + ... + 24580.

Almost surely, 2^25022920 is an apocalyptic number.

25022920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25022920 is an abundant number, since it is smaller than the sum of its proper divisors (35610800).

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

25022920 is a wasteful number, since it uses less digits than its factorization.

25022920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48145 (or 48141 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25022920 is about 5002.2914749143. The cubic root of 25022920 is about 292.4911045095.

Adding to 25022920 its reverse (2922052), we get a palindrome (27944972).

The spelling of 25022920 in words is "twenty-five million, twenty-two thousand, nine hundred twenty".