25087197983 has 2 divisors, whose sum is σ = 25087197984. Its totient is φ = 25087197982.

The previous prime is 25087197929. The next prime is 25087198033. The reversal of 25087197983 is 38979178052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25087197983 - 2¹⁴ = 25087181599 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25087197683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12543598991 + 12543598992.

It is an arithmetic number, because the mean of its divisors is an integer number (12543598992).

Almost surely, 2^25087197983 is an apocalyptic number.

25087197983 is a deficient number, since it is larger than the sum of its proper divisors (1).

25087197983 is an equidigital number, since it uses as much as digits as its factorization.

25087197983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The spelling of 25087197983 in words is "twenty-five billion, eighty-seven million, one hundred ninety-seven thousand, nine hundred eighty-three".