50001145 has 4 divisors (see below), whose sum is σ = 60001380. Its totient is φ = 40000912.

The previous prime is 50001139. The next prime is 50001157. The reversal of 50001145 is 54110005.

It is a happy number.

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 16581184 + 33419961 = 4072^2 + 5781^2 .

It is a cyclic number.

It is not a de Polignac number, because 50001145 - 2³ = 50001137 is a prime.

It is a super-2 number, since 2×50001145² = 5000229002622050, which contains 22 as substring.

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, 5000110 + ... + 5000119.

It is an arithmetic number, because the mean of its divisors is an integer number (15000345).

Almost surely, 2^50001145 is an apocalyptic number.

It is an amenable number.

50001145 is a deficient number, since it is larger than the sum of its proper divisors (10000235).

50001145 is a wasteful number, since it uses less digits than its factorization.

50001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000234.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 50001145 is about 7071.1487751284. The cubic root of 50001145 is about 368.4059619866.

The spelling of 50001145 in words is "fifty million, one thousand, one hundred forty-five".