5245638977 has 2 divisors, whose sum is σ = 5245638978. Its totient is φ = 5245638976.

The previous prime is 5245638953. The next prime is 5245638989. The reversal of 5245638977 is 7798365425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3854050561 + 1391588416 = 62081^2 + 37304^2 .

It is a cyclic number.

It is not a de Polignac number, because 5245638977 - 2²⁰ = 5244590401 is a prime.

It is not a weakly prime, because it can be changed into another prime (5245638077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622819488 + 2622819489.

It is an arithmetic number, because the mean of its divisors is an integer number (2622819489).

Almost surely, 2^5245638977 is an apocalyptic number.

It is an amenable number.

5245638977 is a deficient number, since it is larger than the sum of its proper divisors (1).

5245638977 is an equidigital number, since it uses as much as digits as its factorization.

5245638977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 56.

The square root of 5245638977 is about 72426.7835610556. The cubic root of 5245638977 is about 1737.5319500155.

The spelling of 5245638977 in words is "five billion, two hundred forty-five million, six hundred thirty-eight thousand, nine hundred seventy-seven".