50705538551 has 2 divisors, whose sum is σ = 50705538552. Its totient is φ = 50705538550.

The previous prime is 50705538547. The next prime is 50705538581. The reversal of 50705538551 is 15583550705.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50705538551 - 2² = 50705538547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50705538581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25352769275 + 25352769276.

It is an arithmetic number, because the mean of its divisors is an integer number (25352769276).

Almost surely, 2^50705538551 is an apocalyptic number.

50705538551 is a deficient number, since it is larger than the sum of its proper divisors (1).

50705538551 is an equidigital number, since it uses as much as digits as its factorization.

50705538551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525000, while the sum is 44.

The spelling of 50705538551 in words is "fifty billion, seven hundred five million, five hundred thirty-eight thousand, five hundred fifty-one".