25327937545 has 12 divisors (see below), whose sum is σ = 30443089284. Its totient is φ = 20229360800.

The previous prime is 25327937519. The next prime is 25327937581. The reversal of 25327937545 is 54573972352.

It can be written as a sum of positive squares in 2 ways, for example, as 20076906249 + 5251031296 = 141693^2 + 72464^2 .

It is not a de Polignac number, because 25327937545 - 2⁵ = 25327937513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25327937492 and 25327937501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2086995 + ... + 2099095.

It is an arithmetic number, because the mean of its divisors is an integer number (2536924107).

Almost surely, 2^25327937545 is an apocalyptic number.

It is an amenable number.

25327937545 is a deficient number, since it is larger than the sum of its proper divisors (5115151739).

25327937545 is an frugal number, since it uses more digits than its factorization.

25327937545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400 (or 12753 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 52.

The spelling of 25327937545 in words is "twenty-five billion, three hundred twenty-seven million, nine hundred thirty-seven thousand, five hundred forty-five".