25977027573 has 24 divisors (see below), whose sum is σ = 43098224000. Its totient is φ = 14769415584.

The previous prime is 25977027569. The next prime is 25977027581. The reversal of 25977027573 is 37572077952.

It is not a de Polignac number, because 25977027573 - 2² = 25977027569 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25972027573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1023478 + ... + 1048551.

Almost surely, 2^25977027573 is an apocalyptic number.

It is an amenable number.

25977027573 is a deficient number, since it is larger than the sum of its proper divisors (17121196427).

25977027573 is a wasteful number, since it uses less digits than its factorization.

25977027573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072241 (or 2072238 counting only the distinct ones).

The product of its (nonzero) digits is 6482700, while the sum is 54.

The spelling of 25977027573 in words is "twenty-five billion, nine hundred seventy-seven million, twenty-seven thousand, five hundred seventy-three".