233690525 has 6 divisors (see below), whose sum is σ = 289776282. Its totient is φ = 186952400.

The previous prime is 233690503. The next prime is 233690531. The reversal of 233690525 is 525096332.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1006009 + 232684516 = 1003^2 + 15254^2 .

It is not a de Polignac number, because 233690525 - 2⁸ = 233690269 is a prime.

It is a super-2 number, since 2×233690525² = 109222522949551250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4673786 + ... + 4673835.

It is an arithmetic number, because the mean of its divisors is an integer number (48296047).

Almost surely, 2^233690525 is an apocalyptic number.

233690525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233690525 is a deficient number, since it is larger than the sum of its proper divisors (56085757).

233690525 is an equidigital number, since it uses as much as digits as its factorization.

233690525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347631 (or 9347626 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 233690525 is about 15286.9396871970. The cubic root of 233690525 is about 615.9522340612.

The spelling of 233690525 in words is "two hundred thirty-three million, six hundred ninety thousand, five hundred twenty-five".