253206245 has 16 divisors (see below), whose sum is σ = 322429248. Its totient is φ = 190229760.

The previous prime is 253206193. The next prime is 253206253. The reversal of 253206245 is 542602352.

It is not a de Polignac number, because 253206245 - 2¹² = 253202149 is a prime.

It is a super-2 number, since 2×253206245² = 128226805014000050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 38702 + ... + 44768.

It is an arithmetic number, because the mean of its divisors is an integer number (20151828).

Almost surely, 2^253206245 is an apocalyptic number.

It is an amenable number.

253206245 is a deficient number, since it is larger than the sum of its proper divisors (69223003).

253206245 is a wasteful number, since it uses less digits than its factorization.

253206245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 253206245 is about 15912.4556558691. The cubic root of 253206245 is about 632.6421704398.

Adding to 253206245 its reverse (542602352), we get a palindrome (795808597).

The spelling of 253206245 in words is "two hundred fifty-three million, two hundred six thousand, two hundred forty-five".