253355405025011 has 4 divisors (see below), whose sum is σ = 253357745317872. Its totient is φ = 253353064732152.

The previous prime is 253355405024987. The next prime is 253355405025049. The reversal of 253355405025011 is 110520504553352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253355405025011 is a prime.

It is a super-2 number, since 2×253355405025011² (a number of 30 digits) contains 22 as substring.

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 253355405025011.

It is not an unprimeable number, because it can be changed into a prime (253355405025511) 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, 1169984036 + ... + 1170200561.

It is an arithmetic number, because the mean of its divisors is an integer number (63339436329468).

Almost surely, 2^{253355405025011} is an apocalyptic number.

253355405025011 is a deficient number, since it is larger than the sum of its proper divisors (2340292861).

253355405025011 is a wasteful number, since it uses less digits than its factorization.

253355405025011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340292860.

The product of its (nonzero) digits is 450000, while the sum is 41.

Adding to 253355405025011 its reverse (110520504553352), we get a palindrome (363875909578363).

The spelling of 253355405025011 in words is "two hundred fifty-three trillion, three hundred fifty-five billion, four hundred five million, twenty-five thousand, eleven".