2541455566 has 32 divisors (see below), whose sum is σ = 4179420000. Its totient is φ = 1151902080.

The previous prime is 2541455557. The next prime is 2541455569. The reversal of 2541455566 is 6655541452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541455569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694685 + ... + 1696183.

It is an arithmetic number, because the mean of its divisors is an integer number (130606875).

Almost surely, 2^2541455566 is an apocalyptic number.

2541455566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2541455566 is a deficient number, since it is larger than the sum of its proper divisors (1637964434).

2541455566 is a wasteful number, since it uses less digits than its factorization.

2541455566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644.

The product of its digits is 720000, while the sum is 43.

The square root of 2541455566 is about 50412.8511988759. The cubic root of 2541455566 is about 1364.6695682527.

The spelling of 2541455566 in words is "two billion, five hundred forty-one million, four hundred fifty-five thousand, five hundred sixty-six".