253520011 has 4 divisors (see below), whose sum is σ = 254238552. Its totient is φ = 252801472.

The previous prime is 253520009. The next prime is 253520023. The reversal of 253520011 is 110025352.

253520011 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.

It is a cyclic number.

It is not a de Polignac number, because 253520011 - 2¹ = 253520009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253520081) 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, 358741 + ... + 359446.

It is an arithmetic number, because the mean of its divisors is an integer number (63559638).

Almost surely, 2^253520011 is an apocalyptic number.

253520011 is a deficient number, since it is larger than the sum of its proper divisors (718541).

253520011 is an equidigital number, since it uses as much as digits as its factorization.

253520011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718540.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 253520011 is about 15922.3117354233. The cubic root of 253520011 is about 632.9033799887.

Adding to 253520011 its reverse (110025352), we get a palindrome (363545363).

The spelling of 253520011 in words is "two hundred fifty-three million, five hundred twenty thousand, eleven".