2541645100 has 18 divisors (see below), whose sum is σ = 5515370084. Its totient is φ = 1016658000.

The previous prime is 2541645091. The next prime is 2541645131. The reversal of 2541645100 is 15461452.

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 5 ways as a sum of consecutive naturals, for example, 12708126 + ... + 12708325.

Almost surely, 2^2541645100 is an apocalyptic number.

2541645100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2541645100 is an abundant number, since it is smaller than the sum of its proper divisors (2973724984).

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

2541645100 is a wasteful number, since it uses less digits than its factorization.

2541645100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25416465 (or 25416458 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2541645100 is about 50414.7309821247. The cubic root of 2541645100 is about 1364.7034917066.

The spelling of 2541645100 in words is "two billion, five hundred forty-one million, six hundred forty-five thousand, one hundred".