253355245 has 24 divisors (see below), whose sum is σ = 359894808. Its totient is φ = 170079360.

The previous prime is 253355227. The next prime is 253355261. The reversal of 253355245 is 542553352.

It can be written as a sum of positive squares in 4 ways, for example, as 36735721 + 216619524 = 6061^2 + 14718^2 .

It is not a de Polignac number, because 253355245 - 2⁷ = 253355117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253355245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8242 + ... + 23971.

It is an arithmetic number, because the mean of its divisors is an integer number (14995617).

Almost surely, 2^253355245 is an apocalyptic number.

It is an amenable number.

253355245 is a deficient number, since it is larger than the sum of its proper divisors (106539563).

253355245 is a wasteful number, since it uses less digits than its factorization.

253355245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32253 (or 32242 counting only the distinct ones).

The product of its digits is 90000, while the sum is 34.

The square root of 253355245 is about 15917.1368342425. The cubic root of 253355245 is about 632.7662395223.

The spelling of 253355245 in words is "two hundred fifty-three million, three hundred fifty-five thousand, two hundred forty-five".