69280725 has 12 divisors (see below), whose sum is σ = 114544256. Its totient is φ = 36949680.

The previous prime is 69280711. The next prime is 69280733. The reversal of 69280725 is 52708296.

It is a happy number.

It is not a de Polignac number, because 69280725 - 2⁷ = 69280597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 461797 + ... + 461946.

Almost surely, 2^69280725 is an apocalyptic number.

It is an amenable number.

69280725 is a deficient number, since it is larger than the sum of its proper divisors (45263531).

69280725 is a wasteful number, since it uses less digits than its factorization.

69280725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923756 (or 923751 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 69280725 is about 8323.5043701556. The cubic root of 69280725 is about 410.7120780510.

The spelling of 69280725 in words is "sixty-nine million, two hundred eighty thousand, seven hundred twenty-five".