25079287577 has 2 divisors, whose sum is σ = 25079287578. Its totient is φ = 25079287576.

The previous prime is 25079287567. The next prime is 25079287603. The reversal of 25079287577 is 77578297052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24929567881 + 149719696 = 157891^2 + 12236^2 .

It is a cyclic number.

It is not a de Polignac number, because 25079287577 - 2¹⁴ = 25079271193 is a prime.

It is not a weakly prime, because it can be changed into another prime (25079287537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12539643788 + 12539643789.

It is an arithmetic number, because the mean of its divisors is an integer number (12539643789).

Almost surely, 2^25079287577 is an apocalyptic number.

It is an amenable number.

25079287577 is a deficient number, since it is larger than the sum of its proper divisors (1).

25079287577 is an equidigital number, since it uses as much as digits as its factorization.

25079287577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17287200, while the sum is 59.

The spelling of 25079287577 in words is "twenty-five billion, seventy-nine million, two hundred eighty-seven thousand, five hundred seventy-seven".