253321330505 has 8 divisors (see below), whose sum is σ = 303990673032. Its totient is φ = 202653680128.

The previous prime is 253321330501. The next prime is 253321330511. The reversal of 253321330505 is 505033123352.

It can be written as a sum of positive squares in 4 ways, for example, as 47267977744 + 206053352761 = 217412^2 + 453931^2 .

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 253321330505 - 2² = 253321330501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253321330501) 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, 66344 + ... + 714873.

It is an arithmetic number, because the mean of its divisors is an integer number (37998834129).

Almost surely, 2^253321330505 is an apocalyptic number.

It is an amenable number.

253321330505 is a deficient number, since it is larger than the sum of its proper divisors (50669342527).

253321330505 is an equidigital number, since it uses as much as digits as its factorization.

253321330505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846075.

The product of its (nonzero) digits is 40500, while the sum is 32.

Adding to 253321330505 its reverse (505033123352), we get a palindrome (758354453857).

The spelling of 253321330505 in words is "two hundred fifty-three billion, three hundred twenty-one million, three hundred thirty thousand, five hundred five".