2545122756 has 48 divisors (see below), whose sum is σ = 6616350720. Its totient is φ = 754837920.

The previous prime is 2545122733. The next prime is 2545122809. The reversal of 2545122756 is 6572215452.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198916 + ... + 211323.

It is an arithmetic number, because the mean of its divisors is an integer number (137840640).

Almost surely, 2^2545122756 is an apocalyptic number.

It is an amenable number.

2545122756 is an abundant number, since it is smaller than the sum of its proper divisors (4071227964).

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

2545122756 is a wasteful number, since it uses less digits than its factorization.

2545122756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410304 (or 410302 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 2545122756 is about 50449.2096667530. The cubic root of 2545122756 is about 1365.3256355223.

The spelling of 2545122756 in words is "two billion, five hundred forty-five million, one hundred twenty-two thousand, seven hundred fifty-six".