245576675557 has 2 divisors, whose sum is σ = 245576675558. Its totient is φ = 245576675556.

The previous prime is 245576675537. The next prime is 245576675563. The reversal of 245576675557 is 755576675542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146267237601 + 99309437956 = 382449^2 + 315134^2 .

It is a cyclic number.

It is not a de Polignac number, because 245576675557 - 2⁷ = 245576675429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245576675537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122788337778 + 122788337779.

It is an arithmetic number, because the mean of its divisors is an integer number (122788337779).

Almost surely, 2^245576675557 is an apocalyptic number.

It is an amenable number.

245576675557 is a deficient number, since it is larger than the sum of its proper divisors (1).

245576675557 is an equidigital number, since it uses as much as digits as its factorization.

245576675557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308700000, while the sum is 64.

The spelling of 245576675557 in words is "two hundred forty-five billion, five hundred seventy-six million, six hundred seventy-five thousand, five hundred fifty-seven".