55736256769 has 2 divisors, whose sum is σ = 55736256770. Its totient is φ = 55736256768.

The previous prime is 55736256749. The next prime is 55736256787. The reversal of 55736256769 is 96765263755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52808040000 + 2928216769 = 229800^2 + 54113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55736256769 is a prime.

It is a super-2 number, since 2×55736256769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55736256739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27868128384 + 27868128385.

It is an arithmetic number, because the mean of its divisors is an integer number (27868128385).

Almost surely, 2^55736256769 is an apocalyptic number.

It is an amenable number.

55736256769 is a deficient number, since it is larger than the sum of its proper divisors (1).

55736256769 is an equidigital number, since it uses as much as digits as its factorization.

55736256769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442000, while the sum is 61.

The spelling of 55736256769 in words is "fifty-five billion, seven hundred thirty-six million, two hundred fifty-six thousand, seven hundred sixty-nine".