25999302945 has 64 divisors (see below), whose sum is σ = 51889766400. Its totient is φ = 10799443200.

The previous prime is 25999302943. The next prime is 25999303003. The reversal of 25999302945 is 54920399952.

It is not a de Polignac number, because 25999302945 - 2¹ = 25999302943 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25999302943) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2939680 + ... + 2948510.

It is an arithmetic number, because the mean of its divisors is an integer number (810777600).

Almost surely, 2^25999302945 is an apocalyptic number.

It is an amenable number.

25999302945 is a deficient number, since it is larger than the sum of its proper divisors (25890463455).

25999302945 is a wasteful number, since it uses less digits than its factorization.

25999302945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11406.

The product of its (nonzero) digits is 7873200, while the sum is 57.

The spelling of 25999302945 in words is "twenty-five billion, nine hundred ninety-nine million, three hundred two thousand, nine hundred forty-five".