235620257 has 4 divisors (see below), whose sum is σ = 245864640. Its totient is φ = 225375876.

The previous prime is 235620199. The next prime is 235620269. The reversal of 235620257 is 752026532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 235620257 - 2²⁴ = 218843041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235620557) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5122157 + ... + 5122202.

It is an arithmetic number, because the mean of its divisors is an integer number (61466160).

Almost surely, 2^235620257 is an apocalyptic number.

It is an amenable number.

235620257 is a deficient number, since it is larger than the sum of its proper divisors (10244383).

235620257 is a wasteful number, since it uses less digits than its factorization.

235620257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244382.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 235620257 is about 15349.9269379369. The cubic root of 235620257 is about 617.6430256534.

Adding to 235620257 its reverse (752026532), we get a palindrome (987646789).

The spelling of 235620257 in words is "two hundred thirty-five million, six hundred twenty thousand, two hundred fifty-seven".