50821465 has 4 divisors (see below), whose sum is σ = 60985764. Its totient is φ = 40657168.

The previous prime is 50821457. The next prime is 50821487. The reversal of 50821465 is 56412805.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12616704 + 38204761 = 3552^2 + 6181^2 .

It is a cyclic number.

It is not a de Polignac number, because 50821465 - 2³ = 50821457 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5082142 + ... + 5082151.

It is an arithmetic number, because the mean of its divisors is an integer number (15246441).

Almost surely, 2^50821465 is an apocalyptic number.

It is an amenable number.

50821465 is a deficient number, since it is larger than the sum of its proper divisors (10164299).

50821465 is a wasteful number, since it uses less digits than its factorization.

50821465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164298.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 50821465 is about 7128.9175195116. The cubic root of 50821465 is about 370.4097360127.

The spelling of 50821465 in words is "fifty million, eight hundred twenty-one thousand, four hundred sixty-five".