25324297845 has 48 divisors (see below), whose sum is σ = 51419147328. Its totient is φ = 10524380160.

The previous prime is 25324297829. The next prime is 25324297849. The reversal of 25324297845 is 54879242352.

It is not a de Polignac number, because 25324297845 - 2⁴ = 25324297829 is a prime.

It is a super-2 number, since 2×25324297845² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25324297849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1558044 + ... + 1574213.

It is an arithmetic number, because the mean of its divisors is an integer number (1071232236).

Almost surely, 2^25324297845 is an apocalyptic number.

It is an amenable number.

25324297845 is an abundant number, since it is smaller than the sum of its proper divisors (26094849483).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25324297845 is a wasteful number, since it uses less digits than its factorization.

25324297845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132290 (or 3132283 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The spelling of 25324297845 in words is "twenty-five billion, three hundred twenty-four million, two hundred ninety-seven thousand, eight hundred forty-five".