57222021582 has 96 divisors (see below), whose sum is σ = 140076125280. Its totient is φ = 16722908160.

The previous prime is 57222021581. The next prime is 57222021589. The reversal of 57222021582 is 28512022275.

57222021582 is a `hidden beast` number, since 5 + 72 + 2 + 2 + 0 + 2 + 1 + 582 = 666.

57222021582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57222021581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5466898 + ... + 5477354.

It is an arithmetic number, because the mean of its divisors is an integer number (1459126305).

Almost surely, 2^57222021582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57222021582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70038062640).

57222021582 is an abundant number, since it is smaller than the sum of its proper divisors (82854103698).

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

57222021582 is a wasteful number, since it uses less digits than its factorization.

57222021582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11458 (or 11455 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 57222021582 in words is "fifty-seven billion, two hundred twenty-two million, twenty-one thousand, five hundred eighty-two".