50868813 has 8 divisors (see below), whose sum is σ = 70164000. Its totient is φ = 32743088.

The previous prime is 50868803. The next prime is 50868827. The reversal of 50868813 is 31886805.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50868813 - 2²⁴ = 34091597 is a prime.

It is a super-2 number, since 2×50868813² = 5175272272057938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50868803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292263 + ... + 292436.

It is an arithmetic number, because the mean of its divisors is an integer number (8770500).

Almost surely, 2^50868813 is an apocalyptic number.

It is an amenable number.

50868813 is a deficient number, since it is larger than the sum of its proper divisors (19295187).

50868813 is a wasteful number, since it uses less digits than its factorization.

50868813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584731.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 50868813 is about 7132.2375871812. The cubic root of 50868813 is about 370.5247314941.

It can be divided in two parts, 50868 and 813, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 50868813 in words is "fifty million, eight hundred sixty-eight thousand, eight hundred thirteen".