207940055 has 8 divisors (see below), whose sum is σ = 251860752. Its totient is φ = 164796928.

The previous prime is 207939997. The next prime is 207940067. The reversal of 207940055 is 550049702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207940055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193802 + ... + 194871.

It is an arithmetic number, because the mean of its divisors is an integer number (31482594).

Almost surely, 2^207940055 is an apocalyptic number.

207940055 is a deficient number, since it is larger than the sum of its proper divisors (43920697).

207940055 is a wasteful number, since it uses less digits than its factorization.

207940055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388785.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 207940055 is about 14420.1267331463. The cubic root of 207940055 is about 592.4422893579.

Adding to 207940055 its reverse (550049702), we get a palindrome (757989757).

The spelling of 207940055 in words is "two hundred seven million, nine hundred forty thousand, fifty-five".