2421206057 has 2 divisors, whose sum is σ = 2421206058. Its totient is φ = 2421206056.

The previous prime is 2421206017. The next prime is 2421206063. The reversal of 2421206057 is 7506021242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230887056 + 1190319001 = 35084^2 + 34501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421206057 - 2¹² = 2421201961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2421206017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210603028 + 1210603029.

It is an arithmetic number, because the mean of its divisors is an integer number (1210603029).

Almost surely, 2^2421206057 is an apocalyptic number.

It is an amenable number.

2421206057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421206057 is an equidigital number, since it uses as much as digits as its factorization.

2421206057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2421206057 is about 49205.7522755216. The cubic root of 2421206057 is about 1342.7976851549.

Adding to 2421206057 its reverse (7506021242), we get a palindrome (9927227299).

The spelling of 2421206057 in words is "two billion, four hundred twenty-one million, two hundred six thousand, fifty-seven".