253505147 has 4 divisors (see below), whose sum is σ = 289720176. Its totient is φ = 217290120.

The previous prime is 253505117. The next prime is 253505177. The reversal of 253505147 is 741505352.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (253505117) and next prime (253505177).

It is a cyclic number.

It is not a de Polignac number, because 253505147 - 2¹⁰ = 253504123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253505117) 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 3 ways as a sum of consecutive naturals, for example, 18107504 + ... + 18107517.

It is an arithmetic number, because the mean of its divisors is an integer number (72430044).

Almost surely, 2^253505147 is an apocalyptic number.

253505147 is a deficient number, since it is larger than the sum of its proper divisors (36215029).

253505147 is an equidigital number, since it uses as much as digits as its factorization.

253505147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36215028.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 253505147 is about 15921.8449621895. The cubic root of 253505147 is about 632.8910106040.

The spelling of 253505147 in words is "two hundred fifty-three million, five hundred five thousand, one hundred forty-seven".