50505510110621 has 2 divisors, whose sum is σ = 50505510110622. Its totient is φ = 50505510110620.

The previous prime is 50505510110579. The next prime is 50505510110659. The reversal of 50505510110621 is 12601101550505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47567422723396 + 2938087387225 = 6896914^2 + 1714085^2 .

It is a cyclic number.

It is not a de Polignac number, because 50505510110621 - 2³⁰ = 50504436368797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50505510110221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25252755055310 + 25252755055311.

It is an arithmetic number, because the mean of its divisors is an integer number (25252755055311).

Almost surely, 2^{50505510110621} is an apocalyptic number.

It is an amenable number.

50505510110621 is a deficient number, since it is larger than the sum of its proper divisors (1).

50505510110621 is an equidigital number, since it uses as much as digits as its factorization.

50505510110621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 32.

The spelling of 50505510110621 in words is "fifty trillion, five hundred five billion, five hundred ten million, one hundred ten thousand, six hundred twenty-one".