253503332505 has 32 divisors (see below), whose sum is σ = 465210424320. Its totient is φ = 130840427520.

The previous prime is 253503332413. The next prime is 253503332531. The reversal of 253503332505 is 505233305352.

253503332505 is a `hidden beast` number, since 25 + 3 + 50 + 333 + 250 + 5 = 666.

It is not a de Polignac number, because 253503332505 - 2⁸ = 253503332249 is a prime.

It is a super-2 number, since 2×253503332505² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253503332505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30282952 + ... + 30291321.

It is an arithmetic number, because the mean of its divisors is an integer number (14537825760).

Almost surely, 2^253503332505 is an apocalyptic number.

It is an amenable number.

253503332505 is a deficient number, since it is larger than the sum of its proper divisors (211707091815).

253503332505 is a wasteful number, since it uses less digits than its factorization.

253503332505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60574318 (or 60574312 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 36.

Adding to 253503332505 its reverse (505233305352), we get a palindrome (758736637857).

The spelling of 253503332505 in words is "two hundred fifty-three billion, five hundred three million, three hundred thirty-two thousand, five hundred five".