2541863261 has 8 divisors (see below), whose sum is σ = 2945902464. Its totient is φ = 2148053040.

The previous prime is 2541863249. The next prime is 2541863281. The reversal of 2541863261 is 1623681452.

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

It is not a de Polignac number, because 2541863261 - 2¹⁴ = 2541846877 is a prime.

It is a super-2 number, since 2×2541863261² = 12922137675243108242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541863201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2556710 + ... + 2557703.

It is an arithmetic number, because the mean of its divisors is an integer number (368237808).

Almost surely, 2^2541863261 is an apocalyptic number.

It is an amenable number.

2541863261 is a deficient number, since it is larger than the sum of its proper divisors (404039203).

2541863261 is an equidigital number, since it uses as much as digits as its factorization.

2541863261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114491.

The product of its digits is 69120, while the sum is 38.

The square root of 2541863261 is about 50416.8945989338. The cubic root of 2541863261 is about 1364.7425368328.

The spelling of 2541863261 in words is "two billion, five hundred forty-one million, eight hundred sixty-three thousand, two hundred sixty-one".