57021122 has 8 divisors (see below), whose sum is σ = 85779216. Its totient is φ = 28428052.

The previous prime is 57021113. The next prime is 57021127. The reversal of 57021122 is 22112075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57021094 and 57021103.

It is not an unprimeable number, because it can be changed into a prime (57021127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40388 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (10722402).

Almost surely, 2^57021122 is an apocalyptic number.

57021122 is a deficient number, since it is larger than the sum of its proper divisors (28758094).

57021122 is a wasteful number, since it uses less digits than its factorization.

57021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82512.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 57021122 is about 7551.2331443282. The cubic root of 57021122 is about 384.8976441231.

Adding to 57021122 its reverse (22112075), we get a palindrome (79133197).

The spelling of 57021122 in words is "fifty-seven million, twenty-one thousand, one hundred twenty-two".