57007212 has 24 divisors (see below), whose sum is σ = 133167216. Its totient is φ = 18980928.

The previous prime is 57007183. The next prime is 57007213. The reversal of 57007212 is 21270075.

It is not an unprimeable number, because it can be changed into a prime (57007213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11278 + ... + 15530.

It is an arithmetic number, because the mean of its divisors is an integer number (5548634).

Almost surely, 2^57007212 is an apocalyptic number.

It is an amenable number.

57007212 is an abundant number, since it is smaller than the sum of its proper divisors (76160004).

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

57007212 is a wasteful number, since it uses less digits than its factorization.

57007212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 57007212 is about 7550.3120465316. The cubic root of 57007212 is about 384.8663436655.

Adding to 57007212 its reverse (21270075), we get a palindrome (78277287).

The spelling of 57007212 in words is "fifty-seven million, seven thousand, two hundred twelve".