245656263 has 24 divisors (see below), whose sum is σ = 352453120. Its totient is φ = 151772400.

The previous prime is 245656249. The next prime is 245656349. The reversal of 245656263 is 362656542.

It is not a de Polignac number, because 245656263 - 2⁴ = 245656247 is a prime.

It is a super-2 number, since 2×245656263² = 120693999102250338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245656063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124938 + ... + 126888.

Almost surely, 2^245656263 is an apocalyptic number.

245656263 is a deficient number, since it is larger than the sum of its proper divisors (106796857).

245656263 is a wasteful number, since it uses less digits than its factorization.

245656263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2020 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The square root of 245656263 is about 15673.4253754564. The cubic root of 245656263 is about 626.2906772356.

The spelling of 245656263 in words is "two hundred forty-five million, six hundred fifty-six thousand, two hundred sixty-three".