207720053 has 4 divisors (see below), whose sum is σ = 207810540. Its totient is φ = 207629568.

The previous prime is 207720049. The next prime is 207720083. The reversal of 207720053 is 350027702.

207720053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350027702 = 2 ⋅175013851.

It can be written as a sum of positive squares in 2 ways, for example, as 42289009 + 165431044 = 6503^2 + 12862^2 .

It is a cyclic number.

It is not a de Polignac number, because 207720053 - 2² = 207720049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207720083) 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, 41708 + ... + 46421.

It is an arithmetic number, because the mean of its divisors is an integer number (51952635).

Almost surely, 2^207720053 is an apocalyptic number.

It is an amenable number.

207720053 is a deficient number, since it is larger than the sum of its proper divisors (90487).

207720053 is an equidigital number, since it uses as much as digits as its factorization.

207720053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90486.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 207720053 is about 14412.4964180395. The cubic root of 207720053 is about 592.2332796316.

Adding to 207720053 its reverse (350027702), we get a palindrome (557747755).

The spelling of 207720053 in words is "two hundred seven million, seven hundred twenty thousand, fifty-three".