2545736556 has 48 divisors (see below), whose sum is σ = 6576796800. Its totient is φ = 759918720.

The previous prime is 2545736549. The next prime is 2545736569. The reversal of 2545736556 is 6556375452.

It is a super-2 number, since 2×2545736556² = 12961549225109482272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135081 + ... + 152768.

It is an arithmetic number, because the mean of its divisors is an integer number (137016600).

Almost surely, 2^2545736556 is an apocalyptic number.

It is an amenable number.

2545736556 is an abundant number, since it is smaller than the sum of its proper divisors (4031060244).

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

2545736556 is a wasteful number, since it uses less digits than its factorization.

2545736556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287934 (or 287932 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 48.

The square root of 2545736556 is about 50455.2926460644. The cubic root of 2545736556 is about 1365.4353839307.

The spelling of 2545736556 in words is "two billion, five hundred forty-five million, seven hundred thirty-six thousand, five hundred fifty-six".