57523212 has 36 divisors (see below), whose sum is σ = 146162016. Its totient is φ = 19074720.

The previous prime is 57523199. The next prime is 57523217. The reversal of 57523212 is 21232575.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (57523217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3037 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (4060056).

Almost surely, 2^57523212 is an apocalyptic number.

It is an amenable number.

57523212 is an abundant number, since it is smaller than the sum of its proper divisors (88638804).

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

57523212 is a wasteful number, since it uses less digits than its factorization.

57523212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318 (or 8313 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 57523212 is about 7584.4058435714. The cubic root of 57523212 is about 386.0240617859.

Adding to 57523212 its reverse (21232575), we get a palindrome (78755787).

The spelling of 57523212 in words is "fifty-seven million, five hundred twenty-three thousand, two hundred twelve".