229775525 has 24 divisors (see below), whose sum is σ = 330228864. Its totient is φ = 155332800.

The previous prime is 229775509. The next prime is 229775537. The reversal of 229775525 is 525577922.

It is not a de Polignac number, because 229775525 - 2⁴ = 229775509 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 3179 + ... + 21671.

It is an arithmetic number, because the mean of its divisors is an integer number (13759536).

Almost surely, 2^229775525 is an apocalyptic number.

229775525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229775525 is a deficient number, since it is larger than the sum of its proper divisors (100453339).

229775525 is a wasteful number, since it uses less digits than its factorization.

229775525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18581 (or 18576 counting only the distinct ones).

The product of its digits is 441000, while the sum is 44.

The square root of 229775525 is about 15158.3483598973. The cubic root of 229775525 is about 612.4931777666.

The spelling of 229775525 in words is "two hundred twenty-nine million, seven hundred seventy-five thousand, five hundred twenty-five".