253646240803 has 8 divisors (see below), whose sum is σ = 256285470672. Its totient is φ = 251007507456.

The previous prime is 253646240801. The next prime is 253646240833. The reversal of 253646240803 is 308042646352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 253646240803 - 2¹ = 253646240801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253646240803.

It is not an unprimeable number, because it can be changed into a prime (253646240801) 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, 951051 + ... + 1188187.

It is an arithmetic number, because the mean of its divisors is an integer number (32035683834).

Almost surely, 2^253646240803 is an apocalyptic number.

253646240803 is a deficient number, since it is larger than the sum of its proper divisors (2639229869).

253646240803 is a wasteful number, since it uses less digits than its factorization.

253646240803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248261.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 253646240803 in words is "two hundred fifty-three billion, six hundred forty-six million, two hundred forty thousand, eight hundred three".