72092505 has 8 divisors (see below), whose sum is σ = 115348032. Its totient is φ = 38449328.

The previous prime is 72092497. The next prime is 72092507. The reversal of 72092505 is 50529027.

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 72092505 - 2³ = 72092497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72092507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2403069 + ... + 2403098.

It is an arithmetic number, because the mean of its divisors is an integer number (14418504).

Almost surely, 2^72092505 is an apocalyptic number.

It is an amenable number.

72092505 is a deficient number, since it is larger than the sum of its proper divisors (43255527).

72092505 is a wasteful number, since it uses less digits than its factorization.

72092505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806175.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 72092505 is about 8490.7305339411. The cubic root of 72092505 is about 416.1948533206.

The spelling of 72092505 in words is "seventy-two million, ninety-two thousand, five hundred five".