253303240505 has 32 divisors (see below), whose sum is σ = 356311304448. Its totient is φ = 169250860800.

The previous prime is 253303240459. The next prime is 253303240543. The reversal of 253303240505 is 505042303352.

It is not a de Polignac number, because 253303240505 - 2¹⁴ = 253303224121 is a prime.

It is a Duffinian number.

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, 433715 + ... + 833495.

It is an arithmetic number, because the mean of its divisors is an integer number (11134728264).

Almost surely, 2^253303240505 is an apocalyptic number.

It is an amenable number.

253303240505 is a deficient number, since it is larger than the sum of its proper divisors (103008063943).

253303240505 is a wasteful number, since it uses less digits than its factorization.

253303240505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400257.

The product of its (nonzero) digits is 54000, while the sum is 32.

Adding to 253303240505 its reverse (505042303352), we get a palindrome (758345543857).

The spelling of 253303240505 in words is "two hundred fifty-three billion, three hundred three million, two hundred forty thousand, five hundred five".