50620984957 has 2 divisors, whose sum is σ = 50620984958. Its totient is φ = 50620984956.

The previous prime is 50620984943. The next prime is 50620985029. The reversal of 50620984957 is 75948902605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41783856921 + 8837128036 = 204411^2 + 94006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50620984957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50620984898 and 50620984907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50620984937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25310492478 + 25310492479.

It is an arithmetic number, because the mean of its divisors is an integer number (25310492479).

Almost surely, 2^50620984957 is an apocalyptic number.

It is an amenable number.

50620984957 is a deficient number, since it is larger than the sum of its proper divisors (1).

50620984957 is an equidigital number, since it uses as much as digits as its factorization.

50620984957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 50620984957 in words is "fifty billion, six hundred twenty million, nine hundred eighty-four thousand, nine hundred fifty-seven".