50019861 has 8 divisors (see below), whose sum is σ = 67202784. Its totient is φ = 33091760.

The previous prime is 50019847. The next prime is 50019881. The reversal of 50019861 is 16891005.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 50019861 - 2⁹ = 50019349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50019821) 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, 63246 + ... + 64031.

It is an arithmetic number, because the mean of its divisors is an integer number (8400348).

Almost surely, 2^50019861 is an apocalyptic number.

It is an amenable number.

50019861 is a deficient number, since it is larger than the sum of its proper divisors (17182923).

50019861 is a wasteful number, since it uses less digits than its factorization.

50019861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127411.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 50019861 is about 7072.4720572089. The cubic root of 50019861 is about 368.4519224399.

The spelling of 50019861 in words is "fifty million, nineteen thousand, eight hundred sixty-one".