50113813 has 2 divisors, whose sum is σ = 50113814. Its totient is φ = 50113812.

The previous prime is 50113783. The next prime is 50113829. The reversal of 50113813 is 31831105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 2683044 = 6887^2 + 1638^2 .

It is a cyclic number.

It is not a de Polignac number, because 50113813 - 2²⁵ = 16559381 is a prime.

It is a super-2 number, since 2×50113813² = 5022788506797938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50113883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25056906 + 25056907.

It is an arithmetic number, because the mean of its divisors is an integer number (25056907).

Almost surely, 2^50113813 is an apocalyptic number.

It is an amenable number.

50113813 is a deficient number, since it is larger than the sum of its proper divisors (1).

50113813 is an equidigital number, since it uses as much as digits as its factorization.

50113813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 50113813 is about 7079.1110317610. Note that the first 3 decimals coincide. The cubic root of 50113813 is about 368.6824651577.

Adding to 50113813 its reverse (31831105), we get a palindrome (81944918).

The spelling of 50113813 in words is "fifty million, one hundred thirteen thousand, eight hundred thirteen".