25574562043 has 2 divisors, whose sum is σ = 25574562044. Its totient is φ = 25574562042.

The previous prime is 25574561993. The next prime is 25574562047. The reversal of 25574562043 is 34026547552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25574562043 - 2⁹ = 25574561531 is a prime.

It is not a weakly prime, because it can be changed into another prime (25574562047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787281021 + 12787281022.

It is an arithmetic number, because the mean of its divisors is an integer number (12787281022).

Almost surely, 2^25574562043 is an apocalyptic number.

25574562043 is a deficient number, since it is larger than the sum of its proper divisors (1).

25574562043 is an equidigital number, since it uses as much as digits as its factorization.

25574562043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 25574562043 in words is "twenty-five billion, five hundred seventy-four million, five hundred sixty-two thousand, forty-three".