50126821226521 has 8 divisors (see below), whose sum is σ = 54376765083144. Its totient is φ = 45933168017280.

The previous prime is 50126821226513. The next prime is 50126821226551. The reversal of 50126821226521 is 12562212862105.

It can be written as a sum of positive squares in 4 ways, for example, as 15228725760000 + 34898095466521 = 3902400^2 + 5907461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50126821226521 - 2³ = 50126821226513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50126821226551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14072659990 + ... + 14072663551.

It is an arithmetic number, because the mean of its divisors is an integer number (6797095635393).

Almost surely, 2^{50126821226521} is an apocalyptic number.

It is an amenable number.

50126821226521 is a deficient number, since it is larger than the sum of its proper divisors (4249943856623).

50126821226521 is a wasteful number, since it uses less digits than its factorization.

50126821226521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28145323691.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 50126821226521 in words is "fifty trillion, one hundred twenty-six billion, eight hundred twenty-one million, two hundred twenty-six thousand, five hundred twenty-one".