25052223232 has 18 divisors (see below), whose sum is σ = 50006586728. Its totient is φ = 12526111488.

The previous prime is 25052223211. The next prime is 25052223233. The reversal of 25052223232 is 23232225052.

It is a super-2 number, since 2×25052223232² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25052223232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052223233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48929868 + ... + 48930379.

Almost surely, 2^25052223232 is an apocalyptic number.

It is an amenable number.

25052223232 is a deficient number, since it is larger than the sum of its proper divisors (24954363496).

25052223232 is an frugal number, since it uses more digits than its factorization.

25052223232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97860263 (or 97860249 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 25052223232 its reverse (23232225052), we get a palindrome (48284448284).

The spelling of 25052223232 in words is "twenty-five billion, fifty-two million, two hundred twenty-three thousand, two hundred thirty-two".