50426900621 has 4 divisors (see below), whose sum is σ = 50993495100. Its totient is φ = 49860306144.

The previous prime is 50426900609. The next prime is 50426900749. The reversal of 50426900621 is 12600962405.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23046579721 + 27380320900 = 151811^2 + 165470^2 .

It is a cyclic number.

It is not a de Polignac number, because 50426900621 - 2¹⁴ = 50426884237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50426900021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283297106 + ... + 283297283.

It is an arithmetic number, because the mean of its divisors is an integer number (12748373775).

Almost surely, 2^50426900621 is an apocalyptic number.

It is an amenable number.

50426900621 is a deficient number, since it is larger than the sum of its proper divisors (566594479).

50426900621 is an equidigital number, since it uses as much as digits as its factorization.

50426900621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566594478.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 50426900621 in words is "fifty billion, four hundred twenty-six million, nine hundred thousand, six hundred twenty-one".