2545578530 has 32 divisors (see below), whose sum is σ = 5170962240. Its totient is φ = 893744320.

The previous prime is 2545578493. The next prime is 2545578551. The reversal of 2545578530 is 358755452.

2545578530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 395804 + ... + 402183.

It is an arithmetic number, because the mean of its divisors is an integer number (161592570).

Almost surely, 2^2545578530 is an apocalyptic number.

2545578530 is an abundant number, since it is smaller than the sum of its proper divisors (2625383710).

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

2545578530 is a wasteful number, since it uses less digits than its factorization.

2545578530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798034.

The product of its (nonzero) digits is 840000, while the sum is 44.

The square root of 2545578530 is about 50453.7266215292. The cubic root of 2545578530 is about 1365.4071303189.

The spelling of 2545578530 in words is "two billion, five hundred forty-five million, five hundred seventy-eight thousand, five hundred thirty".