50855352521 has 2 divisors, whose sum is σ = 50855352522. Its totient is φ = 50855352520.

The previous prime is 50855352511. The next prime is 50855352539. The reversal of 50855352521 is 12525355805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28493440000 + 22361912521 = 168800^2 + 149539^2 .

It is a cyclic number.

It is not a de Polignac number, because 50855352521 - 2²⁶ = 50788243657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50855352511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25427676260 + 25427676261.

It is an arithmetic number, because the mean of its divisors is an integer number (25427676261).

Almost surely, 2^50855352521 is an apocalyptic number.

It is an amenable number.

50855352521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50855352521 is an equidigital number, since it uses as much as digits as its factorization.

50855352521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 50855352521 in words is "fifty billion, eight hundred fifty-five million, three hundred fifty-two thousand, five hundred twenty-one".