25590440552648 has 16 divisors (see below), whose sum is σ = 48005267017500. Its totient is φ = 12789036014656.

The previous prime is 25590440552647. The next prime is 25590440552681. The reversal of 25590440552648 is 84625504409552.

It can be written as a sum of positive squares in 2 ways, for example, as 18380238179524 + 7210202373124 = 4287218^2 + 2685182^2 .

It is a super-2 number, since 2×25590440552648² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25590440552647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773015123 + ... + 773048226.

Almost surely, 2^{25590440552648} is an apocalyptic number.

It is an amenable number.

25590440552648 is a deficient number, since it is larger than the sum of its proper divisors (22414826464852).

25590440552648 is a wasteful number, since it uses less digits than its factorization.

25590440552648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546065424 (or 1546065420 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 59.

The spelling of 25590440552648 in words is "twenty-five trillion, five hundred ninety billion, four hundred forty million, five hundred fifty-two thousand, six hundred forty-eight".