57522011 has 4 divisors (see below), whose sum is σ = 60022992. Its totient is φ = 55021032.

The previous prime is 57522007. The next prime is 57522041. The reversal of 57522011 is 11022575.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57522011 - 2² = 57522007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2500957 = 57522011 / (5 + 7 + 5 + 2 + 2 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57522041) 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, 1250456 + ... + 1250501.

It is an arithmetic number, because the mean of its divisors is an integer number (15005748).

Almost surely, 2^57522011 is an apocalyptic number.

57522011 is a deficient number, since it is larger than the sum of its proper divisors (2500981).

57522011 is a wasteful number, since it uses less digits than its factorization.

57522011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500980.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 57522011 is about 7584.3266675427. The cubic root of 57522011 is about 386.0213752291.

Adding to 57522011 its reverse (11022575), we get a palindrome (68544586).

The spelling of 57522011 in words is "fifty-seven million, five hundred twenty-two thousand, eleven".