57266982 has 48 divisors (see below), whose sum is σ = 135637632. Its totient is φ = 17383680.

The previous prime is 57266981. The next prime is 57267011. The reversal of 57266982 is 28966275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57266981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6468 + ... + 12504.

It is an arithmetic number, because the mean of its divisors is an integer number (2825784).

Almost surely, 2^57266982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57266982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67818816).

57266982 is an abundant number, since it is smaller than the sum of its proper divisors (78370650).

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

57266982 is a wasteful number, since it uses less digits than its factorization.

57266982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093 (or 6090 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 57266982 is about 7567.4950941510. The cubic root of 57266982 is about 385.4500432370.

The spelling of 57266982 in words is "fifty-seven million, two hundred sixty-six thousand, nine hundred eighty-two".