2666958225 has 24 divisors (see below), whose sum is σ = 4438590912. Its totient is φ = 1412952000.

The previous prime is 2666958211. The next prime is 2666958253. The reversal of 2666958225 is 5228596662.

It is not a de Polignac number, because 2666958225 - 2⁷ = 2666958097 is a prime.

It is a super-2 number, since 2×2666958225² = 14225332347790301250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106422 + ... + 129071.

It is an arithmetic number, because the mean of its divisors is an integer number (184941288).

Almost surely, 2^2666958225 is an apocalyptic number.

2666958225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2666958225 is a deficient number, since it is larger than the sum of its proper divisors (1771632687).

2666958225 is a wasteful number, since it uses less digits than its factorization.

2666958225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235657 (or 235652 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The square root of 2666958225 is about 51642.6008736973. The cubic root of 2666958225 is about 1386.7730856739.

The spelling of 2666958225 in words is "two billion, six hundred sixty-six million, nine hundred fifty-eight thousand, two hundred twenty-five".