50172005 has 8 divisors (see below), whose sum is σ = 64837752. Its totient is φ = 37050048.

The previous prime is 50171971. The next prime is 50172011. The reversal of 50172005 is 50027105.

It can be written as a sum of positive squares in 4 ways, for example, as 3290596 + 46881409 = 1814^2 + 6847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50172005 - 2⁶ = 50171941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385874 + ... + 386003.

It is an arithmetic number, because the mean of its divisors is an integer number (8104719).

Almost surely, 2^50172005 is an apocalyptic number.

It is an amenable number.

50172005 is a deficient number, since it is larger than the sum of its proper divisors (14665747).

50172005 is a wasteful number, since it uses less digits than its factorization.

50172005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771895.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 50172005 is about 7083.2199598770. The cubic root of 50172005 is about 368.8251142587.

The spelling of 50172005 in words is "fifty million, one hundred seventy-two thousand, five".