72050005 has 8 divisors (see below), whose sum is σ = 86510592. Its totient is φ = 57606288.

The previous prime is 72049987. The next prime is 72050009. The reversal of 72050005 is 50005027.

It is a happy number.

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 72050005 - 2⁵ = 72049973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72050009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8892 + ... + 14938.

It is an arithmetic number, because the mean of its divisors is an integer number (10813824).

Almost surely, 2^72050005 is an apocalyptic number.

It is an amenable number.

72050005 is a deficient number, since it is larger than the sum of its proper divisors (14460587).

72050005 is a wasteful number, since it uses less digits than its factorization.

72050005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435.

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 72050005 is about 8488.2274356900. The cubic root of 72050005 is about 416.1130521298.

The spelling of 72050005 in words is "seventy-two million, fifty thousand, five".