55700307797 has 2 divisors, whose sum is σ = 55700307798. Its totient is φ = 55700307796.

The previous prime is 55700307727. The next prime is 55700307809. The reversal of 55700307797 is 79770300755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36297489361 + 19402818436 = 190519^2 + 139294^2 .

It is a cyclic number.

It is not a de Polignac number, because 55700307797 - 2⁸ = 55700307541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55700307727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27850153898 + 27850153899.

It is an arithmetic number, because the mean of its divisors is an integer number (27850153899).

Almost surely, 2^55700307797 is an apocalyptic number.

It is an amenable number.

55700307797 is a deficient number, since it is larger than the sum of its proper divisors (1).

55700307797 is an equidigital number, since it uses as much as digits as its factorization.

55700307797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620675, while the sum is 50.

The spelling of 55700307797 in words is "fifty-five billion, seven hundred million, three hundred seven thousand, seven hundred ninety-seven".