69399225 has 72 divisors (see below), whose sum is σ = 143532480. Its totient is φ = 31397760.

The previous prime is 69399199. The next prime is 69399247. The reversal of 69399225 is 52299396.

It is not a de Polignac number, because 69399225 - 2⁵ = 69399193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 71 ways as a sum of consecutive naturals, for example, 218767 + ... + 219083.

Almost surely, 2^69399225 is an apocalyptic number.

It is an amenable number.

69399225 is an abundant number, since it is smaller than the sum of its proper divisors (74133255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69399225 is a wasteful number, since it uses less digits than its factorization.

69399225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 471 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 69399225 is about 8330.6197248464. The cubic root of 69399225 is about 410.9461097581.

The spelling of 69399225 in words is "sixty-nine million, three hundred ninety-nine thousand, two hundred twenty-five".