208542253 has 4 divisors (see below), whose sum is σ = 208758880. Its totient is φ = 208325628.

The previous prime is 208542221. The next prime is 208542263. The reversal of 208542253 is 352245802.

208542253 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 208542253 - 2⁵ = 208542221 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 (208542263) 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, 106863 + ... + 108796.

It is an arithmetic number, because the mean of its divisors is an integer number (52189720).

Almost surely, 2^208542253 is an apocalyptic number.

It is an amenable number.

208542253 is a deficient number, since it is larger than the sum of its proper divisors (216627).

208542253 is an equidigital number, since it uses as much as digits as its factorization.

208542253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216626.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 208542253 is about 14440.9921058077. The cubic root of 208542253 is about 593.0136458692.

The spelling of 208542253 in words is "two hundred eight million, five hundred forty-two thousand, two hundred fifty-three".