56517212 has 6 divisors (see below), whose sum is σ = 98905128. Its totient is φ = 28258604.

The previous prime is 56517203. The next prime is 56517269. The reversal of 56517212 is 21271565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7064648 + ... + 7064655.

It is an arithmetic number, because the mean of its divisors is an integer number (16484188).

Almost surely, 2^56517212 is an apocalyptic number.

It is an amenable number.

56517212 is a deficient number, since it is larger than the sum of its proper divisors (42387916).

56517212 is a wasteful number, since it uses less digits than its factorization.

56517212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14129307 (or 14129305 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 56517212 is about 7517.7930272122. The cubic root of 56517212 is about 383.7604752629.

Adding to 56517212 its reverse (21271565), we get a palindrome (77788777).

The spelling of 56517212 in words is "fifty-six million, five hundred seventeen thousand, two hundred twelve".