2581254541 has 2 divisors, whose sum is σ = 2581254542. Its totient is φ = 2581254540.

The previous prime is 2581254521. The next prime is 2581254547. The reversal of 2581254541 is 1454521852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2523052900 + 58201641 = 50230^2 + 7629^2 .

It is a cyclic number.

It is not a de Polignac number, because 2581254541 - 2⁵ = 2581254509 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2581254541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2581254547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290627270 + 1290627271.

It is an arithmetic number, because the mean of its divisors is an integer number (1290627271).

Almost surely, 2^2581254541 is an apocalyptic number.

It is an amenable number.

2581254541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2581254541 is an equidigital number, since it uses as much as digits as its factorization.

2581254541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64000, while the sum is 37.

The square root of 2581254541 is about 50806.0482718347. The cubic root of 2581254541 is about 1371.7562396843.

The spelling of 2581254541 in words is "two billion, five hundred eighty-one million, two hundred fifty-four thousand, five hundred forty-one".