25022740 has 24 divisors (see below), whose sum is σ = 52641792. Its totient is φ = 9991200.

The previous prime is 25022729. The next prime is 25022747. The reversal of 25022740 is 4722052.

It is a super-2 number, since 2×25022740² = 1252275034215200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25022747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21165 + ... + 22315.

It is an arithmetic number, because the mean of its divisors is an integer number (2193408).

Almost surely, 2^25022740 is an apocalyptic number.

25022740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25022740 is an abundant number, since it is smaller than the sum of its proper divisors (27619052).

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

25022740 is a wasteful number, since it uses less digits than its factorization.

25022740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 25022740 is about 5002.2734831274. The cubic root of 25022740 is about 292.4904031721.

Adding to 25022740 its reverse (4722052), we get a palindrome (29744792).

The spelling of 25022740 in words is "twenty-five million, twenty-two thousand, seven hundred forty".