258257763 has 6 divisors (see below), whose sum is σ = 373039004. Its totient is φ = 172171836.

The previous prime is 258257749. The next prime is 258257837. The reversal of 258257763 is 367752852.

258257763 is a `hidden beast` number, since 2 + 582 + 5 + 7 + 7 + 63 = 666.

It is not a de Polignac number, because 258257763 - 2⁸ = 258257507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258257563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14347645 + ... + 14347662.

Almost surely, 2^258257763 is an apocalyptic number.

258257763 is a deficient number, since it is larger than the sum of its proper divisors (114781241).

258257763 is a wasteful number, since it uses less digits than its factorization.

258257763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28695313 (or 28695310 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 258257763 is about 16070.4002128136. The cubic root of 258257763 is about 636.8216137708.

The spelling of 258257763 in words is "two hundred fifty-eight million, two hundred fifty-seven thousand, seven hundred sixty-three".