25720520941 has 12 divisors (see below), whose sum is σ = 26069021472. Its totient is φ = 25375714344.

The previous prime is 25720520921. The next prime is 25720520953. The reversal of 25720520941 is 14902502752.

It is not a de Polignac number, because 25720520941 - 2¹¹ = 25720518893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25720520941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25720520911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3145240 + ... + 3153406.

It is an arithmetic number, because the mean of its divisors is an integer number (2172418456).

Almost surely, 2^25720520941 is an apocalyptic number.

It is an amenable number.

25720520941 is a deficient number, since it is larger than the sum of its proper divisors (348500531).

25720520941 is an equidigital number, since it uses as much as digits as its factorization.

25720520941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608 (or 8469 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 25720520941 in words is "twenty-five billion, seven hundred twenty million, five hundred twenty thousand, nine hundred forty-one".