2541645505 has 32 divisors (see below), whose sum is σ = 3609897984. Its totient is φ = 1681718976.

The previous prime is 2541645497. The next prime is 2541645511. The reversal of 2541645505 is 5055461452.

It is not a de Polignac number, because 2541645505 - 2³ = 2541645497 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 114742 + ... + 135088.

It is an arithmetic number, because the mean of its divisors is an integer number (112809312).

Almost surely, 2^2541645505 is an apocalyptic number.

It is an amenable number.

2541645505 is a deficient number, since it is larger than the sum of its proper divisors (1068252479).

2541645505 is a wasteful number, since it uses less digits than its factorization.

2541645505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20485.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 2541645505 is about 50414.7349988076. The cubic root of 2541645505 is about 1364.7035641931.

The spelling of 2541645505 in words is "two billion, five hundred forty-one million, six hundred forty-five thousand, five hundred five".