2543506746 has 32 divisors (see below), whose sum is σ = 5563505088. Its totient is φ = 768810240.

The previous prime is 2543506739. The next prime is 2543506783. The reversal of 2543506746 is 6476053452.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2543506698 and 2543506707.

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, 22335 + ... + 74738.

It is an arithmetic number, because the mean of its divisors is an integer number (173859534).

Almost surely, 2^2543506746 is an apocalyptic number.

2543506746 is an abundant number, since it is smaller than the sum of its proper divisors (3019998342).

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

2543506746 is a wasteful number, since it uses less digits than its factorization.

2543506746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97486.

The product of its (nonzero) digits is 604800, while the sum is 42.

The square root of 2543506746 is about 50433.1909163003. The cubic root of 2543506746 is about 1365.0366059767.

The spelling of 2543506746 in words is "two billion, five hundred forty-three million, five hundred six thousand, seven hundred forty-six".