25193318045 has 32 divisors (see below), whose sum is σ = 37844755200. Its totient is φ = 15698543616.

The previous prime is 25193318039. The next prime is 25193318047. The reversal of 25193318045 is 54081339152.

It is a de Polignac number, because none of the positive numbers 2^k-25193318045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25193317993 and 25193318011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25193318047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 712775 + ... + 747284.

It is an arithmetic number, because the mean of its divisors is an integer number (1182648600).

Almost surely, 2^25193318045 is an apocalyptic number.

It is an amenable number.

25193318045 is a deficient number, since it is larger than the sum of its proper divisors (12651437155).

25193318045 is a wasteful number, since it uses less digits than its factorization.

25193318045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460117.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 25193318045 in words is "twenty-five billion, one hundred ninety-three million, three hundred eighteen thousand, forty-five".