266553056 has 48 divisors (see below), whose sum is σ = 654272640. Its totient is φ = 103850880.

The previous prime is 266553043. The next prime is 266553073. The reversal of 266553056 is 650355662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51626 + ... + 56553.

It is an arithmetic number, because the mean of its divisors is an integer number (13630680).

Almost surely, 2^266553056 is an apocalyptic number.

It is an amenable number.

266553056 is an abundant number, since it is smaller than the sum of its proper divisors (387719584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266553056 is a wasteful number, since it uses less digits than its factorization.

266553056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108207 (or 108199 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 266553056 is about 16326.4526459363. The cubic root of 266553056 is about 643.5681685090.

The spelling of 266553056 in words is "two hundred sixty-six million, five hundred fifty-three thousand, fifty-six".