25045321012 has 12 divisors (see below), whose sum is σ = 43890275520. Its totient is φ = 12505242296.

The previous prime is 25045321001. The next prime is 25045321033. The reversal of 25045321012 is 21012354052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4351318 + ... + 4357069.

It is an arithmetic number, because the mean of its divisors is an integer number (3657522960).

Almost surely, 2^25045321012 is an apocalyptic number.

It is an amenable number.

25045321012 is a deficient number, since it is larger than the sum of its proper divisors (18844954508).

25045321012 is a wasteful number, since it uses less digits than its factorization.

25045321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709110 (or 8709108 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25045321012 its reverse (21012354052), we get a palindrome (46057675064).

The spelling of 25045321012 in words is "twenty-five billion, forty-five million, three hundred twenty-one thousand, twelve".