50865491 has 4 divisors (see below), whose sum is σ = 52240272. Its totient is φ = 49490712.

The previous prime is 50865487. The next prime is 50865499. The reversal of 50865491 is 19456805.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50865491 - 2² = 50865487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50865499) 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, 687335 + ... + 687408.

It is an arithmetic number, because the mean of its divisors is an integer number (13060068).

Almost surely, 2^50865491 is an apocalyptic number.

50865491 is a deficient number, since it is larger than the sum of its proper divisors (1374781).

50865491 is a wasteful number, since it uses less digits than its factorization.

50865491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374780.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 50865491 is about 7132.0046971381. The cubic root of 50865491 is about 370.5166655831.

The spelling of 50865491 in words is "fifty million, eight hundred sixty-five thousand, four hundred ninety-one".