253144505 has 16 divisors (see below), whose sum is σ = 320397120. Its totient is φ = 191475648.

The previous prime is 253144477. The next prime is 253144511. The reversal of 253144505 is 505441352.

It is a cyclic number.

It is not a de Polignac number, because 253144505 - 2⁸ = 253144249 is a prime.

It is an unprimeable number.

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, 51119 + ... + 55851.

It is an arithmetic number, because the mean of its divisors is an integer number (20024820).

Almost surely, 2^253144505 is an apocalyptic number.

It is an amenable number.

253144505 is a deficient number, since it is larger than the sum of its proper divisors (67252615).

253144505 is a wasteful number, since it uses less digits than its factorization.

253144505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 253144505 is about 15910.5155479010. The cubic root of 253144505 is about 632.5907466125.

Adding to 253144505 its reverse (505441352), we get a palindrome (758585857).

The spelling of 253144505 in words is "two hundred fifty-three million, one hundred forty-four thousand, five hundred five".