245616560 has 40 divisors (see below), whose sum is σ = 652639776. Its totient is φ = 84211200.

The previous prime is 245616557. The next prime is 245616571. The reversal of 245616560 is 65616542.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 245616560.

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, 218741 + ... + 219860.

Almost surely, 2^245616560 is an apocalyptic number.

245616560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245616560 is an abundant number, since it is smaller than the sum of its proper divisors (407023216).

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

245616560 is a wasteful number, since it uses less digits than its factorization.

245616560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438621 (or 438615 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 245616560 is about 15672.1587536625. The cubic root of 245616560 is about 626.2569350217.

The spelling of 245616560 in words is "two hundred forty-five million, six hundred sixteen thousand, five hundred sixty".