235725786257 has 16 divisors (see below), whose sum is σ = 268909194960. Its totient is φ = 204703690752.

The previous prime is 235725786203. The next prime is 235725786259. The reversal of 235725786257 is 752687527532.

It is a Cunningham number, because it is equal to 485516²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 235725786256 = 1^2 + 485516^2 .

It is a cyclic number.

It is not a de Polignac number, because 235725786257 - 2⁸ = 235725786001 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235725786196 and 235725786205.

It is not an unprimeable number, because it can be changed into a prime (235725786259) 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 15 ways as a sum of consecutive naturals, for example, 274169 + ... + 739337.

It is an arithmetic number, because the mean of its divisors is an integer number (16806824685).

Almost surely, 2^235725786257 is an apocalyptic number.

It is an amenable number.

235725786257 is a deficient number, since it is larger than the sum of its proper divisors (33183408703).

235725786257 is a wasteful number, since it uses less digits than its factorization.

235725786257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467492.

The product of its digits is 49392000, while the sum is 59.

The spelling of 235725786257 in words is "two hundred thirty-five billion, seven hundred twenty-five million, seven hundred eighty-six thousand, two hundred fifty-seven".