57422581 has 4 divisors (see below), whose sum is σ = 59402700. Its totient is φ = 55442464.

The previous prime is 57422569. The next prime is 57422597. The reversal of 57422581 is 18522475.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12666481 + 44756100 = 3559^2 + 6690^2 .

It is a cyclic number.

It is not a de Polignac number, because 57422581 - 2¹¹ = 57420533 is a prime.

It is a super-2 number, since 2×57422581² = 6594705617403122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57426581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990016 + ... + 990073.

It is an arithmetic number, because the mean of its divisors is an integer number (14850675).

Almost surely, 2^57422581 is an apocalyptic number.

It is an amenable number.

57422581 is a deficient number, since it is larger than the sum of its proper divisors (1980119).

57422581 is a wasteful number, since it uses less digits than its factorization.

57422581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980118.

The product of its digits is 22400, while the sum is 34.

The square root of 57422581 is about 7577.7688668895. The cubic root of 57422581 is about 385.7988271347.

The spelling of 57422581 in words is "fifty-seven million, four hundred twenty-two thousand, five hundred eighty-one".