69872505 has 16 divisors (see below), whose sum is σ = 116657280. Its totient is φ = 35644928.

The previous prime is 69872483. The next prime is 69872531. The reversal of 69872505 is 50527896.

It is a cyclic number.

It is not a de Polignac number, because 69872505 - 2⁶ = 69872441 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 100920 + ... + 101609.

It is an arithmetic number, because the mean of its divisors is an integer number (7291080).

Almost surely, 2^69872505 is an apocalyptic number.

It is an amenable number.

69872505 is a deficient number, since it is larger than the sum of its proper divisors (46784775).

69872505 is a wasteful number, since it uses less digits than its factorization.

69872505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202560.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 69872505 is about 8358.9775092412. The cubic root of 69872505 is about 411.8781668384.

The spelling of 69872505 in words is "sixty-nine million, eight hundred seventy-two thousand, five hundred five".