253171013 has 4 divisors (see below), whose sum is σ = 255629088. Its totient is φ = 250712940.

The previous prime is 253171007. The next prime is 253171049. The reversal of 253171013 is 310171352.

253171013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253171013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253171013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253171003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228883 + ... + 1229088.

It is an arithmetic number, because the mean of its divisors is an integer number (63907272).

Almost surely, 2^253171013 is an apocalyptic number.

It is an amenable number.

253171013 is a deficient number, since it is larger than the sum of its proper divisors (2458075).

253171013 is a wasteful number, since it uses less digits than its factorization.

253171013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458074.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 253171013 is about 15911.3485600687. The cubic root of 253171013 is about 632.6128263994.

The spelling of 253171013 in words is "two hundred fifty-three million, one hundred seventy-one thousand, thirteen".