50502145 has 4 divisors (see below), whose sum is σ = 60602580. Its totient is φ = 40401712.

The previous prime is 50502139. The next prime is 50502149. The reversal of 50502145 is 54120505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54120505 = 5 ⋅10824101.

It can be written as a sum of positive squares in 2 ways, for example, as 37368769 + 13133376 = 6113^2 + 3624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50502145 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (50502149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050210 + ... + 5050219.

It is an arithmetic number, because the mean of its divisors is an integer number (15150645).

Almost surely, 2^50502145 is an apocalyptic number.

It is an amenable number.

50502145 is a deficient number, since it is larger than the sum of its proper divisors (10100435).

50502145 is a wasteful number, since it uses less digits than its factorization.

50502145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100434.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50502145 is about 7106.4861218467. The cubic root of 50502145 is about 369.6323228456.

The spelling of 50502145 in words is "fifty million, five hundred two thousand, one hundred forty-five".