50516565 has 32 divisors (see below), whose sum is σ = 88653312. Its totient is φ = 24360000.

The previous prime is 50516549. The next prime is 50516603. The reversal of 50516565 is 56561505.

It is not a de Polignac number, because 50516565 - 2⁴ = 50516549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34090 + ... + 35540.

It is an arithmetic number, because the mean of its divisors is an integer number (2770416).

Almost surely, 2^50516565 is an apocalyptic number.

50516565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50516565 is a deficient number, since it is larger than the sum of its proper divisors (38136747).

50516565 is a wasteful number, since it uses less digits than its factorization.

50516565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 50516565 is about 7107.5006155469. The cubic root of 50516565 is about 369.6675001691.

It can be divided in two parts, 50 and 516565, that added together give a palindrome (516615).

The spelling of 50516565 in words is "fifty million, five hundred sixteen thousand, five hundred sixty-five".