50478745 has 4 divisors (see below), whose sum is σ = 60574500. Its totient is φ = 40382992.

The previous prime is 50478739. The next prime is 50478761. The reversal of 50478745 is 54787405.

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 16232841 + 34245904 = 4029^2 + 5852^2 .

It is a cyclic number.

It is not a de Polignac number, because 50478745 - 2¹⁵ = 50445977 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 50478698 and 50478707.

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, 5047870 + ... + 5047879.

It is an arithmetic number, because the mean of its divisors is an integer number (15143625).

Almost surely, 2^50478745 is an apocalyptic number.

It is an amenable number.

50478745 is a deficient number, since it is larger than the sum of its proper divisors (10095755).

50478745 is a wasteful number, since it uses less digits than its factorization.

50478745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095754.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 50478745 is about 7104.8395478012. The cubic root of 50478745 is about 369.5752247258.

The spelling of 50478745 in words is "fifty million, four hundred seventy-eight thousand, seven hundred forty-five".