25937764322 has 18 divisors (see below), whose sum is σ = 39768473163. Its totient is φ = 12687709972.

The previous prime is 25937764271. The next prime is 25937764327. The reversal of 25937764322 is 22346773952.

It can be written as a sum of positive squares in only one way, i.e., 12968882161 + 12968882161 = 113881^2 + 113881^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113881.

It is a super-2 number, since 2×25937764322² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25937764327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10703603 + ... + 10706025.

Almost surely, 2^25937764322 is an apocalyptic number.

25937764322 is a deficient number, since it is larger than the sum of its proper divisors (13830708841).

25937764322 is an frugal number, since it uses more digits than its factorization.

25937764322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942 (or 2472 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 50.

Multiplying 25937764322 by its sum of digits (50), we get a square (1296888216100 = 1138810²).

The spelling of 25937764322 in words is "twenty-five billion, nine hundred thirty-seven million, seven hundred sixty-four thousand, three hundred twenty-two".