57057266 has 24 divisors (see below), whose sum is σ = 104802480. Its totient is φ = 23165352.

The previous prime is 57057257. The next prime is 57057283. The reversal of 57057266 is 66275075.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 13460 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (4366770).

Almost surely, 2^57057266 is an apocalyptic number.

57057266 is a deficient number, since it is larger than the sum of its proper divisors (47745214).

57057266 is a wasteful number, since it uses less digits than its factorization.

57057266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30678 (or 30671 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 57057266 is about 7553.6260166889. The cubic root of 57057266 is about 384.9789520174.

The spelling of 57057266 in words is "fifty-seven million, fifty-seven thousand, two hundred sixty-six".