25222722 has 32 divisors (see below), whose sum is σ = 57867264. Its totient is φ = 7179600.

The previous prime is 25222699. The next prime is 25222723. The reversal of 25222722 is 22722252.

It is a junction number, because it is equal to n+sod(n) for n = 25222692 and 25222701.

It is not an unprimeable number, because it can be changed into a prime (25222723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12097 + ... + 14027.

It is an arithmetic number, because the mean of its divisors is an integer number (1808352).

Almost surely, 2^25222722 is an apocalyptic number.

25222722 is an abundant number, since it is smaller than the sum of its proper divisors (32644542).

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

25222722 is a wasteful number, since it uses less digits than its factorization.

25222722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254.

The product of its digits is 2240, while the sum is 24.

The square root of 25222722 is about 5022.2228146509. Note that the first 3 decimals coincide. The cubic root of 25222722 is about 293.2675320149.

Adding to 25222722 its reverse (22722252), we get a palindrome (47944974).

The spelling of 25222722 in words is "twenty-five million, two hundred twenty-two thousand, seven hundred twenty-two".