2545542500 has 30 divisors (see below), whose sum is σ = 5566597806. Its totient is φ = 1018216000.

The previous prime is 2545542487. The next prime is 2545542511. The reversal of 2545542500 is 52455452.

It can be written as a sum of positive squares in 5 ways, for example, as 357361216 + 2188181284 = 18904^2 + 46778^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 506609 + ... + 511608.

Almost surely, 2^2545542500 is an apocalyptic number.

2545542500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545542500 is an abundant number, since it is smaller than the sum of its proper divisors (3021055306).

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

2545542500 is a wasteful number, since it uses less digits than its factorization.

2545542500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018241 (or 1018224 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 2545542500 is about 50453.3695604169. The cubic root of 2545542500 is about 1365.4006883189.

Adding to 2545542500 its reverse (52455452), we get a palindrome (2597997952).

The spelling of 2545542500 in words is "two billion, five hundred forty-five million, five hundred forty-two thousand, five hundred".