56217670 has 8 divisors (see below), whose sum is σ = 101191824. Its totient is φ = 22487064.

The previous prime is 56217659. The next prime is 56217671. The reversal of 56217670 is 7671265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56217671) 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, 2810874 + ... + 2810893.

It is an arithmetic number, because the mean of its divisors is an integer number (12648978).

Almost surely, 2^56217670 is an apocalyptic number.

56217670 is a deficient number, since it is larger than the sum of its proper divisors (44974154).

56217670 is a wasteful number, since it uses less digits than its factorization.

56217670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621774.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 56217670 is about 7497.8443568802. The cubic root of 56217670 is about 383.0812953614.

The spelling of 56217670 in words is "fifty-six million, two hundred seventeen thousand, six hundred seventy".