207220056 has 16 divisors (see below), whose sum is σ = 518050200. Its totient is φ = 69073344.

The previous prime is 207220049. The next prime is 207220121. The reversal of 207220056 is 650022702.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8634169 = 207220056 / (2 + 0 + 7 + 2 + 2 + 0 + 0 + 5 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4317061 + ... + 4317108.

Almost surely, 2^207220056 is an apocalyptic number.

It is an amenable number.

207220056 is an abundant number, since it is smaller than the sum of its proper divisors (310830144).

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

207220056 is a wasteful number, since it uses less digits than its factorization.

207220056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634178 (or 8634174 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 207220056 is about 14395.1400132128. The cubic root of 207220056 is about 591.7577152572.

Adding to 207220056 its reverse (650022702), we get a palindrome (857242758).

The spelling of 207220056 in words is "two hundred seven million, two hundred twenty thousand, fifty-six".