117825565 has 48 divisors (see below), whose sum is σ = 170529408. Its totient is φ = 77616000.

The previous prime is 117825563. The next prime is 117825571. The reversal of 117825565 is 565528711.

It is a happy number.

It is not a de Polignac number, because 117825565 - 2¹ = 117825563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117825563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 558310 + ... + 558520.

It is an arithmetic number, because the mean of its divisors is an integer number (3552696).

Almost surely, 2^117825565 is an apocalyptic number.

It is an amenable number.

117825565 is a deficient number, since it is larger than the sum of its proper divisors (52703843).

117825565 is a wasteful number, since it uses less digits than its factorization.

117825565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 311 counting only the distinct ones).

The product of its digits is 84000, while the sum is 40.

The square root of 117825565 is about 10854.7485000805. The cubic root of 117825565 is about 490.2450045055.

The spelling of 117825565 in words is "one hundred seventeen million, eight hundred twenty-five thousand, five hundred sixty-five".