25112427577 has 2 divisors, whose sum is σ = 25112427578. Its totient is φ = 25112427576.

The previous prime is 25112427551. The next prime is 25112427581. The reversal of 25112427577 is 77572421152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22604821801 + 2507605776 = 150349^2 + 50076^2 .

It is a cyclic number.

It is not a de Polignac number, because 25112427577 - 2¹⁵ = 25112394809 is a prime.

It is not a weakly prime, because it can be changed into another prime (25112427877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556213788 + 12556213789.

It is an arithmetic number, because the mean of its divisors is an integer number (12556213789).

Almost surely, 2^25112427577 is an apocalyptic number.

It is an amenable number.

25112427577 is a deficient number, since it is larger than the sum of its proper divisors (1).

25112427577 is an equidigital number, since it uses as much as digits as its factorization.

25112427577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274400, while the sum is 43.

The spelling of 25112427577 in words is "twenty-five billion, one hundred twelve million, four hundred twenty-seven thousand, five hundred seventy-seven".