2545562500 has 126 divisors (see below), whose sum is σ = 6054649062. Its totient is φ = 936000000.

The previous prime is 2545562479. The next prime is 2545562501. The reversal of 2545562500 is 52655452.

2545562500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 21 ways, for example, as 572070724 + 1973491776 = 23918^2 + 44424^2 .

It is not an unprimeable number, because it can be changed into a prime (2545562501) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 10562380 + ... + 10562620.

Almost surely, 2^2545562500 is an apocalyptic number.

2545562500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3027324531).

2545562500 is an abundant number, since it is smaller than the sum of its proper divisors (3509086562).

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

2545562500 is an equidigital number, since it uses as much as digits as its factorization.

2545562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 2545562500 is about 50453.5677628451. The cubic root of 2545562500 is about 1365.4042642354.

It can be divided in two parts, 25 and 45562500, that multiplied together give a square (1139062500 = 33750²).

The spelling of 2545562500 in words is "two billion, five hundred forty-five million, five hundred sixty-two thousand, five hundred".