229589725 has 6 divisors (see below), whose sum is σ = 284691290. Its totient is φ = 183671760.

The previous prime is 229589719. The next prime is 229589729. The reversal of 229589725 is 527985922.

It can be written as a sum of positive squares in 3 ways, for example, as 13235044 + 216354681 = 3638^2 + 14709^2 .

It is not a de Polignac number, because 229589725 - 2¹⁹ = 229065437 is a prime.

It is a super-2 number, since 2×229589725² = 105422883651151250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229589729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4591770 + ... + 4591819.

Almost surely, 2^229589725 is an apocalyptic number.

229589725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229589725 is a deficient number, since it is larger than the sum of its proper divisors (55101565).

229589725 is an equidigital number, since it uses as much as digits as its factorization.

229589725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183599 (or 9183594 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 229589725 is about 15152.2184844332. The cubic root of 229589725 is about 612.3280428013.

It can be divided in two parts, 2295897 and 25, that added together give a palindrome (2295922).

The spelling of 229589725 in words is "two hundred twenty-nine million, five hundred eighty-nine thousand, seven hundred twenty-five".