50388861 has 4 divisors (see below), whose sum is σ = 67185152. Its totient is φ = 33592572.

The previous prime is 50388853. The next prime is 50388869. The reversal of 50388861 is 16888305.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (50388853) and next prime (50388869).

It is not a de Polignac number, because 50388861 - 2³ = 50388853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50388869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8398141 + ... + 8398146.

It is an arithmetic number, because the mean of its divisors is an integer number (16796288).

Almost surely, 2^50388861 is an apocalyptic number.

It is an amenable number.

50388861 is a deficient number, since it is larger than the sum of its proper divisors (16796291).

50388861 is a wasteful number, since it uses less digits than its factorization.

50388861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16796290.

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

The square root of 50388861 is about 7098.5111819310. The cubic root of 50388861 is about 369.3557354081.

The spelling of 50388861 in words is "fifty million, three hundred eighty-eight thousand, eight hundred sixty-one".