69988725 has 24 divisors (see below), whose sum is σ = 128573120. Its totient is φ = 37326960.

The previous prime is 69988717. The next prime is 69988769. The reversal of 69988725 is 52788996.

It is a happy number.

69988725 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 69988725 - 2³ = 69988717 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51169 + ... + 52518.

Almost surely, 2^69988725 is an apocalyptic number.

It is an amenable number.

69988725 is a deficient number, since it is larger than the sum of its proper divisors (58584395).

69988725 is a wasteful number, since it uses less digits than its factorization.

69988725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103706 (or 103695 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 69988725 is about 8365.9264280772. The cubic root of 69988725 is about 412.1064014157.

The spelling of 69988725 in words is "sixty-nine million, nine hundred eighty-eight thousand, seven hundred twenty-five".