50977813 has 2 divisors, whose sum is σ = 50977814. Its totient is φ = 50977812.

The previous prime is 50977799. The next prime is 50977847. The reversal of 50977813 is 31877905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 7193124 = 6617^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 50977813 - 2²⁵ = 17423381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50977873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25488906 + 25488907.

It is an arithmetic number, because the mean of its divisors is an integer number (25488907).

Almost surely, 2^50977813 is an apocalyptic number.

It is an amenable number.

50977813 is a deficient number, since it is larger than the sum of its proper divisors (1).

50977813 is an equidigital number, since it uses as much as digits as its factorization.

50977813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 50977813 is about 7139.8748588473. The cubic root of 50977813 is about 370.7891920471.

The spelling of 50977813 in words is "fifty million, nine hundred seventy-seven thousand, eight hundred thirteen".