25222452036 has 72 divisors (see below), whose sum is σ = 61138899360. Its totient is φ = 8088651648.

The previous prime is 25222452007. The next prime is 25222452053. The reversal of 25222452036 is 63025422252.

It is a junction number, because it is equal to n+sod(n) for n = 25222451988 and 25222452006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2310880 + ... + 2321768.

It is an arithmetic number, because the mean of its divisors is an integer number (849151380).

Almost surely, 2^25222452036 is an apocalyptic number.

It is an amenable number.

25222452036 is an abundant number, since it is smaller than the sum of its proper divisors (35916447324).

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

25222452036 is a wasteful number, since it uses less digits than its factorization.

25222452036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073 (or 11004 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 25222452036 its reverse (63025422252), we get a palindrome (88247874288).

The spelling of 25222452036 in words is "twenty-five billion, two hundred twenty-two million, four hundred fifty-two thousand, thirty-six".