2421545254571 has 2 divisors, whose sum is σ = 2421545254572. Its totient is φ = 2421545254570.

The previous prime is 2421545254553. The next prime is 2421545254633. The reversal of 2421545254571 is 1754525451242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421545254571 - 2⁶ = 2421545254507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2421545254511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210772627285 + 1210772627286.

It is an arithmetic number, because the mean of its divisors is an integer number (1210772627286).

Almost surely, 2^{2421545254571} is an apocalyptic number.

2421545254571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421545254571 is an equidigital number, since it uses as much as digits as its factorization.

2421545254571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240000, while the sum is 47.

The spelling of 2421545254571 in words is "two trillion, four hundred twenty-one billion, five hundred forty-five million, two hundred fifty-four thousand, five hundred seventy-one".