245511568 has 40 divisors (see below), whose sum is σ = 512395776. Its totient is φ = 113625600.

The previous prime is 245511547. The next prime is 245511571. The reversal of 245511568 is 865115542.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648 + ... + 22168.

Almost surely, 2^245511568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245511568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256197888).

245511568 is an abundant number, since it is smaller than the sum of its proper divisors (266884208).

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

245511568 is a wasteful number, since it uses less digits than its factorization.

245511568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21583 (or 21577 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 245511568 is about 15668.8087613577. The cubic root of 245511568 is about 626.1676884074.

The spelling of 245511568 in words is "two hundred forty-five million, five hundred eleven thousand, five hundred sixty-eight".