2541556461 has 8 divisors (see below), whose sum is σ = 3423677824. Its totient is φ = 1676903040.

The previous prime is 2541556447. The next prime is 2541556469. The reversal of 2541556461 is 1646551452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2541556461 - 2⁶ = 2541556397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541556469) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4366645 + ... + 4367226.

It is an arithmetic number, because the mean of its divisors is an integer number (427959728).

Almost surely, 2^2541556461 is an apocalyptic number.

It is an amenable number.

2541556461 is a deficient number, since it is larger than the sum of its proper divisors (882121363).

2541556461 is an equidigital number, since it uses as much as digits as its factorization.

2541556461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733971.

The product of its digits is 144000, while the sum is 39.

The square root of 2541556461 is about 50413.8518762453. The cubic root of 2541556461 is about 1364.6876270003.

The spelling of 2541556461 in words is "two billion, five hundred forty-one million, five hundred fifty-six thousand, four hundred sixty-one".