253807245 has 24 divisors (see below), whose sum is σ = 441792000. Its totient is φ = 134791776.

The previous prime is 253807241. The next prime is 253807247. The reversal of 253807245 is 542708352.

It is not a de Polignac number, because 253807245 - 2² = 253807241 is a prime.

It is a super-2 number, since 2×253807245² = 128836235228980050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253807241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1045 + ... + 22554.

It is an arithmetic number, because the mean of its divisors is an integer number (18408000).

Almost surely, 2^253807245 is an apocalyptic number.

It is an amenable number.

253807245 is a deficient number, since it is larger than the sum of its proper divisors (187984755).

253807245 is a wasteful number, since it uses less digits than its factorization.

253807245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23849 (or 23846 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 253807245 is about 15931.3290406042. The cubic root of 253807245 is about 633.1423128135.

The spelling of 253807245 in words is "two hundred fifty-three million, eight hundred seven thousand, two hundred forty-five".