50001515 has 4 divisors (see below), whose sum is σ = 60001824. Its totient is φ = 40001208.

The previous prime is 50001499. The next prime is 50001527. The reversal of 50001515 is 51510005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50001515 - 2⁴ = 50001499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50001493 and 50001502.

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, 5000147 + ... + 5000156.

It is an arithmetic number, because the mean of its divisors is an integer number (15000456).

Almost surely, 2^50001515 is an apocalyptic number.

50001515 is a deficient number, since it is larger than the sum of its proper divisors (10000309).

50001515 is a wasteful number, since it uses less digits than its factorization.

50001515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000308.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 50001515 is about 7071.1749377314. The cubic root of 50001515 is about 368.4068706983.

The spelling of 50001515 in words is "fifty million, one thousand, five hundred fifteen".