57081022 has 4 divisors (see below), whose sum is σ = 85621536. Its totient is φ = 28540510.

The previous prime is 57080999. The next prime is 57081029. The reversal of 57081022 is 22018075.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57081029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14270254 + ... + 14270257.

It is an arithmetic number, because the mean of its divisors is an integer number (21405384).

Almost surely, 2^57081022 is an apocalyptic number.

57081022 is a deficient number, since it is larger than the sum of its proper divisors (28540514).

57081022 is a wasteful number, since it uses less digits than its factorization.

57081022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28540513.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 57081022 is about 7555.1983428630. The cubic root of 57081022 is about 385.0323737324.

Adding to 57081022 its reverse (22018075), we get a palindrome (79099097).

The spelling of 57081022 in words is "fifty-seven million, eighty-one thousand, twenty-two".