49252975769 has 2 divisors, whose sum is σ = 49252975770. Its totient is φ = 49252975768.

The previous prime is 49252975757. The next prime is 49252975771. The reversal of 49252975769 is 96757925294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42061087744 + 7191888025 = 205088^2 + 84805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49252975769 is a prime.

It is a super-2 number, since 2×49252975769² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 49252975771, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49252975799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24626487884 + 24626487885.

It is an arithmetic number, because the mean of its divisors is an integer number (24626487885).

Almost surely, 2^49252975769 is an apocalyptic number.

It is an amenable number.

49252975769 is a deficient number, since it is larger than the sum of its proper divisors (1).

49252975769 is an equidigital number, since it uses as much as digits as its factorization.

49252975769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85730400, while the sum is 65.

The spelling of 49252975769 in words is "forty-nine billion, two hundred fifty-two million, nine hundred seventy-five thousand, seven hundred sixty-nine".