2425266221 has 8 divisors (see below), whose sum is σ = 2828299200. Its totient is φ = 2078799324.

The previous prime is 2425266203. The next prime is 2425266281. The reversal of 2425266221 is 1226625242.

It is not a de Polignac number, because 2425266221 - 2⁶ = 2425266157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2425266281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3535031 + ... + 3535716.

It is an arithmetic number, because the mean of its divisors is an integer number (353537400).

Almost surely, 2^2425266221 is an apocalyptic number.

It is an amenable number.

2425266221 is a deficient number, since it is larger than the sum of its proper divisors (403032979).

2425266221 is an frugal number, since it uses more digits than its factorization.

2425266221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070768 (or 7070754 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 2425266221 is about 49246.9919995120. The cubic root of 2425266221 is about 1343.5478531871.

The spelling of 2425266221 in words is "two billion, four hundred twenty-five million, two hundred sixty-six thousand, two hundred twenty-one".