50666517 has 24 divisors (see below), whose sum is σ = 81544320. Its totient is φ = 30050880.

The previous prime is 50666489. The next prime is 50666519. The reversal of 50666517 is 71566605.

It is a happy number.

It is not a de Polignac number, because 50666517 - 2¹⁰ = 50665493 is a prime.

It is a super-2 number, since 2×50666517² = 5134191889822578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50666519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 792 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (3397680).

Almost surely, 2^50666517 is an apocalyptic number.

It is an amenable number.

50666517 is a deficient number, since it is larger than the sum of its proper divisors (30877803).

50666517 is a wasteful number, since it uses less digits than its factorization.

50666517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10953 (or 10950 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 50666517 is about 7118.0416548374. The cubic root of 50666517 is about 370.0329091741.

The spelling of 50666517 in words is "fifty million, six hundred sixty-six thousand, five hundred seventeen".