50719861 has 4 divisors (see below), whose sum is σ = 50756832. Its totient is φ = 50682892.

The previous prime is 50719841. The next prime is 50719913. The reversal of 50719861 is 16891705.

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 a cyclic number.

It is not a de Polignac number, because 50719861 - 2⁹ = 50719349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50719861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50719841) 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, 16345 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (12689208).

Almost surely, 2^50719861 is an apocalyptic number.

It is an amenable number.

50719861 is a deficient number, since it is larger than the sum of its proper divisors (36971).

50719861 is a wasteful number, since it uses less digits than its factorization.

50719861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36970.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 50719861 is about 7121.7877671270. The cubic root of 50719861 is about 370.1627260851.

The spelling of 50719861 in words is "fifty million, seven hundred nineteen thousand, eight hundred sixty-one".