50811745 has 8 divisors (see below), whose sum is σ = 61012584. Its totient is φ = 40623744.

The previous prime is 50811743. The next prime is 50811763. The reversal of 50811745 is 54711805.

It can be written as a sum of positive squares in 4 ways, for example, as 1937664 + 48874081 = 1392^2 + 6991^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50811745 - 2¹ = 50811743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50811743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12507 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (7626573).

Almost surely, 2^50811745 is an apocalyptic number.

It is an amenable number.

50811745 is a deficient number, since it is larger than the sum of its proper divisors (10200839).

50811745 is a wasteful number, since it uses less digits than its factorization.

50811745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 50811745 is about 7128.2357564828. The cubic root of 50811745 is about 370.3861199272.

The spelling of 50811745 in words is "fifty million, eight hundred eleven thousand, seven hundred forty-five".