253525213 has 8 divisors (see below), whose sum is σ = 256522680. Its totient is φ = 250544640.

The previous prime is 253525193. The next prime is 253525219. The reversal of 253525213 is 312525352.

It can be written as a sum of positive squares in 4 ways, for example, as 84603204 + 168922009 = 9198^2 + 12997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253525213 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 (253525219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27333 + ... + 35413.

It is an arithmetic number, because the mean of its divisors is an integer number (32065335).

Almost surely, 2^253525213 is an apocalyptic number.

It is an amenable number.

253525213 is a deficient number, since it is larger than the sum of its proper divisors (2997467).

253525213 is a wasteful number, since it uses less digits than its factorization.

253525213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8447.

The product of its digits is 9000, while the sum is 28.

The square root of 253525213 is about 15922.4750902616. The cubic root of 253525213 is about 632.9077088263.

The spelling of 253525213 in words is "two hundred fifty-three million, five hundred twenty-five thousand, two hundred thirteen".