50426907397 has 2 divisors, whose sum is σ = 50426907398. Its totient is φ = 50426907396.

The previous prime is 50426907371. The next prime is 50426907431. The reversal of 50426907397 is 79370962405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49483557601 + 943349796 = 222449^2 + 30714^2 .

It is a cyclic number.

It is not a de Polignac number, because 50426907397 - 2¹⁵ = 50426874629 is a prime.

It is a super-2 number, since 2×50426907397² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50426907337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25213453698 + 25213453699.

It is an arithmetic number, because the mean of its divisors is an integer number (25213453699).

Almost surely, 2^50426907397 is an apocalyptic number.

It is an amenable number.

50426907397 is a deficient number, since it is larger than the sum of its proper divisors (1).

50426907397 is an equidigital number, since it uses as much as digits as its factorization.

50426907397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 50426907397 in words is "fifty billion, four hundred twenty-six million, nine hundred seven thousand, three hundred ninety-seven".