2541611857 has 2 divisors, whose sum is σ = 2541611858. Its totient is φ = 2541611856.

The previous prime is 2541611833. The next prime is 2541611861. The reversal of 2541611857 is 7581161452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2050368961 + 491242896 = 45281^2 + 22164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541611857 - 2³¹ = 394128209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541611257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270805928 + 1270805929.

It is an arithmetic number, because the mean of its divisors is an integer number (1270805929).

Almost surely, 2^2541611857 is an apocalyptic number.

It is an amenable number.

2541611857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541611857 is an equidigital number, since it uses as much as digits as its factorization.

2541611857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 40.

The square root of 2541611857 is about 50414.4012857437. The cubic root of 2541611857 is about 1364.6975418809.

It can be divided in two parts, 25416 and 11857, that added together give a palindrome (37273).

The spelling of 2541611857 in words is "two billion, five hundred forty-one million, six hundred eleven thousand, eight hundred fifty-seven".