245651856 has 20 divisors (see below), whose sum is σ = 634600752. Its totient is φ = 81883936.

The previous prime is 245651851. The next prime is 245651881. The reversal of 245651856 is 658156542.

It is not an unprimeable number, because it can be changed into a prime (245651851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558826 + ... + 2558921.

Almost surely, 2^245651856 is an apocalyptic number.

It is an amenable number.

245651856 is an abundant number, since it is smaller than the sum of its proper divisors (388948896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245651856 is a wasteful number, since it uses less digits than its factorization.

245651856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117758 (or 5117752 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 245651856 is about 15673.2847865404. The cubic root of 245651856 is about 626.2869320573.

The spelling of 245651856 in words is "two hundred forty-five million, six hundred fifty-one thousand, eight hundred fifty-six".