57224196 has 18 divisors (see below), whose sum is σ = 144650142. Its totient is φ = 19074720.

The previous prime is 57224191. The next prime is 57224197. The reversal of 57224196 is 69142275.

It can be written as a sum of positive squares in only one way, i.e., 55711296 + 1512900 = 7464^2 + 1230^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1589561 = 57224196 / (5 + 7 + 2 + 2 + 4 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 57224196.

It is not an unprimeable number, because it can be changed into a prime (57224191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 794745 + ... + 794816.

It is an arithmetic number, because the mean of its divisors is an integer number (8036119).

Almost surely, 2^57224196 is an apocalyptic number.

It is an amenable number.

57224196 is an abundant number, since it is smaller than the sum of its proper divisors (87425946).

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

57224196 is a wasteful number, since it uses less digits than its factorization.

57224196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589571 (or 1589566 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 57224196 is about 7564.6676067095. The cubic root of 57224196 is about 385.3540252881.

The spelling of 57224196 in words is "fifty-seven million, two hundred twenty-four thousand, one hundred ninety-six".