245053191577 has 2 divisors, whose sum is σ = 245053191578. Its totient is φ = 245053191576.

The previous prime is 245053191563. The next prime is 245053191587. The reversal of 245053191577 is 775191350542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185878250496 + 59174941081 = 431136^2 + 243259^2 .

It is a cyclic number.

It is not a de Polignac number, because 245053191577 - 2²³ = 245044802969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245053191577.

It is not a weakly prime, because it can be changed into another prime (245053191587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122526595788 + 122526595789.

It is an arithmetic number, because the mean of its divisors is an integer number (122526595789).

Almost surely, 2^245053191577 is an apocalyptic number.

It is an amenable number.

245053191577 is a deficient number, since it is larger than the sum of its proper divisors (1).

245053191577 is an equidigital number, since it uses as much as digits as its factorization.

245053191577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1323000, while the sum is 49.

The spelling of 245053191577 in words is "two hundred forty-five billion, fifty-three million, one hundred ninety-one thousand, five hundred seventy-seven".