25222710 has 16 divisors (see below), whose sum is σ = 60534576. Its totient is φ = 6726048.

The previous prime is 25222699. The next prime is 25222723. The reversal of 25222710 is 1722252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420349 + ... + 420408.

It is an arithmetic number, because the mean of its divisors is an integer number (3783411).

Almost surely, 2^25222710 is an apocalyptic number.

25222710 is an abundant number, since it is smaller than the sum of its proper divisors (35311866).

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

25222710 is a wasteful number, since it uses less digits than its factorization.

25222710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840767.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25222710 is about 5022.2216199606. The cubic root of 25222710 is about 293.2674855065.

Adding to 25222710 its reverse (1722252), we get a palindrome (26944962).

The spelling of 25222710 in words is "twenty-five million, two hundred twenty-two thousand, seven hundred ten".