2505320560 has 20 divisors (see below), whose sum is σ = 5824870488. Its totient is φ = 1002128192.

The previous prime is 2505320537. The next prime is 2505320591. The reversal of 2505320560 is 650235052.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2505320560² = 12553262216717427200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15658174 + ... + 15658333.

Almost surely, 2^2505320560 is an apocalyptic number.

2505320560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505320560 is an abundant number, since it is smaller than the sum of its proper divisors (3319549928).

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

2505320560 is a wasteful number, since it uses less digits than its factorization.

2505320560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31316520 (or 31316514 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 2505320560 is about 50053.1773217245. The cubic root of 2505320560 is about 1358.1709408617.

The spelling of 2505320560 in words is "two billion, five hundred five million, three hundred twenty thousand, five hundred sixty".