50145665 has 16 divisors (see below), whose sum is σ = 65273040. Its totient is φ = 36833280.

The previous prime is 50145659. The next prime is 50145673. The reversal of 50145665 is 56654105.

50145665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4879681 + 45265984 = 2209^2 + 6728^2 .

It is not a de Polignac number, because 50145665 - 2⁸ = 50145409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3710 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (4079565).

Almost surely, 2^50145665 is an apocalyptic number.

It is an amenable number.

50145665 is a deficient number, since it is larger than the sum of its proper divisors (15127375).

50145665 is a wasteful number, since it uses less digits than its factorization.

50145665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 50145665 is about 7081.3603919021. The cubic root of 50145665 is about 368.7605593069.

The spelling of 50145665 in words is "fifty million, one hundred forty-five thousand, six hundred sixty-five".