253340565 has 8 divisors (see below), whose sum is σ = 405344928. Its totient is φ = 135114960.

The previous prime is 253340557. The next prime is 253340569. The reversal of 253340565 is 565043352.

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

It is not a de Polignac number, because 253340565 - 2³ = 253340557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253340569) 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, 8444671 + ... + 8444700.

It is an arithmetic number, because the mean of its divisors is an integer number (50668116).

Almost surely, 2^253340565 is an apocalyptic number.

It is an amenable number.

253340565 is a deficient number, since it is larger than the sum of its proper divisors (152004363).

253340565 is a wasteful number, since it uses less digits than its factorization.

253340565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16889379.

The product of its (nonzero) digits is 54000, while the sum is 33.

The square root of 253340565 is about 15916.6756893517. The cubic root of 253340565 is about 632.7540179639.

The spelling of 253340565 in words is "two hundred fifty-three million, three hundred forty thousand, five hundred sixty-five".