2425858021 has 2 divisors, whose sum is σ = 2425858022. Its totient is φ = 2425858020.

The previous prime is 2425857989. The next prime is 2425858037. The reversal of 2425858021 is 1208585242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205335521 + 220522500 = 46961^2 + 14850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2425858021 - 2⁵ = 2425857989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2425858081) 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, 1212929010 + 1212929011.

It is an arithmetic number, because the mean of its divisors is an integer number (1212929011).

Almost surely, 2^2425858021 is an apocalyptic number.

It is an amenable number.

2425858021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2425858021 is an equidigital number, since it uses as much as digits as its factorization.

2425858021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 2425858021 is about 49253.0001218200. Note that the first 3 decimals coincide. The cubic root of 2425858021 is about 1343.6571259957.

The spelling of 2425858021 in words is "two billion, four hundred twenty-five million, eight hundred fifty-eight thousand, twenty-one".