245995623 has 10 divisors (see below), whose sum is σ = 367475064. Its totient is φ = 163997028.

The previous prime is 245995609. The next prime is 245995657. The reversal of 245995623 is 326599542.

245995623 is a `hidden beast` number, since 2 + 4 + 599 + 56 + 2 + 3 = 666.

It is not a de Polignac number, because 245995623 - 2¹⁰ = 245994599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245995663) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1518411 + ... + 1518572.

Almost surely, 2^245995623 is an apocalyptic number.

245995623 is a deficient number, since it is larger than the sum of its proper divisors (121479441).

245995623 is an equidigital number, since it uses as much as digits as its factorization.

245995623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036995 (or 3036986 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 245995623 is about 15684.2476070738. The cubic root of 245995623 is about 626.5789393883.

The spelling of 245995623 in words is "two hundred forty-five million, nine hundred ninety-five thousand, six hundred twenty-three".