245656 has 8 divisors (see below), whose sum is σ = 460620. Its totient is φ = 122824.

The previous prime is 245653. The next prime is 245671. The reversal of 245656 is 656542.

245656 is nontrivially palindromic in base 13.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15346 + ... + 15361.

2²⁴⁵⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

245656 is a deficient number, since it is larger than the sum of its proper divisors (214964).

245656 is a wasteful number, since it uses less digits than its factorization.

245656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30713 (or 30709 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 245656 is about 495.6369639161. The cubic root of 245656 is about 62.6290453733.

The spelling of 245656 in words is "two hundred forty-five thousand, six hundred fifty-six".