25397483099 has 4 divisors (see below), whose sum is σ = 25397854680. Its totient is φ = 25397111520.

The previous prime is 25397483093. The next prime is 25397483101. The reversal of 25397483099 is 99038479352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25397483099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25397483093) 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, 50357 + ... + 230934.

It is an arithmetic number, because the mean of its divisors is an integer number (6349463670).

Almost surely, 2^25397483099 is an apocalyptic number.

25397483099 is a deficient number, since it is larger than the sum of its proper divisors (371581).

25397483099 is an equidigital number, since it uses as much as digits as its factorization.

25397483099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371580.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 25397483099 in words is "twenty-five billion, three hundred ninety-seven million, four hundred eighty-three thousand, ninety-nine".