253148505 has 16 divisors (see below), whose sum is σ = 406037760. Its totient is φ = 134679168.

The previous prime is 253148503. The next prime is 253148509. The reversal of 253148505 is 505841352.

It is not a de Polignac number, because 253148505 - 2¹ = 253148503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253148501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14497 + ... + 26766.

It is an arithmetic number, because the mean of its divisors is an integer number (25377360).

Almost surely, 2^253148505 is an apocalyptic number.

It is an amenable number.

253148505 is a deficient number, since it is larger than the sum of its proper divisors (152889255).

253148505 is a wasteful number, since it uses less digits than its factorization.

253148505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41680.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 253148505 is about 15910.6412504336. The cubic root of 253148505 is about 632.5940785034.

Adding to 253148505 its reverse (505841352), we get a palindrome (758989857).

The spelling of 253148505 in words is "two hundred fifty-three million, one hundred forty-eight thousand, five hundred five".