50776749431 has 2 divisors, whose sum is σ = 50776749432. Its totient is φ = 50776749430.

The previous prime is 50776749407. The next prime is 50776749449. The reversal of 50776749431 is 13494767705.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50776749431 is a prime.

It is a super-2 number, since 2×50776749431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50776749451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25388374715 + 25388374716.

It is an arithmetic number, because the mean of its divisors is an integer number (25388374716).

Almost surely, 2^50776749431 is an apocalyptic number.

50776749431 is a deficient number, since it is larger than the sum of its proper divisors (1).

50776749431 is an equidigital number, since it uses as much as digits as its factorization.

50776749431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 50776749431 in words is "fifty billion, seven hundred seventy-six million, seven hundred forty-nine thousand, four hundred thirty-one".