69280025 has 24 divisors (see below), whose sum is σ = 90958464. Its totient is φ = 52236800.

The previous prime is 69279997. The next prime is 69280027. The reversal of 69280025 is 52008296.

It is not a de Polignac number, because 69280025 - 2¹⁶ = 69214489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69279973 and 69280000.

It is not an unprimeable number, because it can be changed into a prime (69280027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39977 + ... + 41673.

It is an arithmetic number, because the mean of its divisors is an integer number (3789936).

Almost surely, 2^69280025 is an apocalyptic number.

It is an amenable number.

69280025 is a deficient number, since it is larger than the sum of its proper divisors (21678439).

69280025 is a wasteful number, since it uses less digits than its factorization.

69280025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 69280025 is about 8323.4623204529. The cubic root of 69280025 is about 410.7106947926.

The spelling of 69280025 in words is "sixty-nine million, two hundred eighty thousand, twenty-five".