25205022 has 12 divisors (see below), whose sum is σ = 54610920. Its totient is φ = 8401668.

The previous prime is 25204979. The next prime is 25205023. The reversal of 25205022 is 22050252.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1400279 = 25205022 / (2 + 5 + 2 + 0 + 5 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 25204986 and 25205004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 700122 + ... + 700157.

It is an arithmetic number, because the mean of its divisors is an integer number (4550910).

Almost surely, 2^25205022 is an apocalyptic number.

25205022 is an abundant number, since it is smaller than the sum of its proper divisors (29405898).

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

25205022 is a wasteful number, since it uses less digits than its factorization.

25205022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400287 (or 1400284 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25205022 is about 5020.4603374591. The cubic root of 25205022 is about 293.1989159736.

Adding to 25205022 its reverse (22050252), we get a palindrome (47255274).

The spelling of 25205022 in words is "twenty-five million, two hundred five thousand, twenty-two".