50311645 has 8 divisors (see below), whose sum is σ = 60590520. Its totient is φ = 40104960.

The previous prime is 50311643. The next prime is 50311661. The reversal of 50311645 is 54611305.

It can be written as a sum of positive squares in 4 ways, for example, as 8139609 + 42172036 = 2853^2 + 6494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50311645 - 2¹ = 50311643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50311643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16500 + ... + 19309.

It is an arithmetic number, because the mean of its divisors is an integer number (7573815).

Almost surely, 2^50311645 is an apocalyptic number.

It is an amenable number.

50311645 is a deficient number, since it is larger than the sum of its proper divisors (10278875).

50311645 is a wasteful number, since it uses less digits than its factorization.

50311645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36095.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 50311645 is about 7093.0702097188. The cubic root of 50311645 is about 369.1669717777.

The spelling of 50311645 in words is "fifty million, three hundred eleven thousand, six hundred forty-five".