2541521651 has 2 divisors, whose sum is σ = 2541521652. Its totient is φ = 2541521650.

The previous prime is 2541521621. The next prime is 2541521657. The reversal of 2541521651 is 1561251452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2541521651 - 2¹⁸ = 2541259507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541521657) 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 as a sum of consecutive naturals, namely, 1270760825 + 1270760826.

It is an arithmetic number, because the mean of its divisors is an integer number (1270760826).

Almost surely, 2^2541521651 is an apocalyptic number.

2541521651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541521651 is an equidigital number, since it uses as much as digits as its factorization.

2541521651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 32.

The square root of 2541521651 is about 50413.5066326476. The cubic root of 2541521651 is about 1364.6813965671.

The spelling of 2541521651 in words is "two billion, five hundred forty-one million, five hundred twenty-one thousand, six hundred fifty-one".