208315053 has 6 divisors (see below), whose sum is σ = 300899534. Its totient is φ = 138876696.

The previous prime is 208315043. The next prime is 208315099. The reversal of 208315053 is 350513802.

208315053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 113486409 + 94828644 = 10653^2 + 9738^2 .

It is not a de Polignac number, because 208315053 - 2⁶ = 208314989 is a prime.

It is a super-2 number, since 2×208315053² = 86790322612785618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208315013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11573050 + ... + 11573067.

Almost surely, 2^208315053 is an apocalyptic number.

It is an amenable number.

208315053 is a deficient number, since it is larger than the sum of its proper divisors (92584481).

208315053 is a wasteful number, since it uses less digits than its factorization.

208315053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23146123 (or 23146120 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 208315053 is about 14433.1234665266. The cubic root of 208315053 is about 592.7982112558.

Adding to 208315053 its reverse (350513802), we get a palindrome (558828855).

The spelling of 208315053 in words is "two hundred eight million, three hundred fifteen thousand, fifty-three".