253771 has 6 divisors (see below), whose sum is σ = 295260. Its totient is φ = 217476.

The previous prime is 253769. The next prime is 253777. The reversal of 253771 is 177352.

It is not a de Polignac number, because 253771 - 2¹ = 253769 is a prime.

253771 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (253777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2541 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (49210).

2²⁵³⁷⁷¹ is an apocalyptic number.

253771 is a deficient number, since it is larger than the sum of its proper divisors (41489).

253771 is an equidigital number, since it uses as much as digits as its factorization.

253771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193 (or 5186 counting only the distinct ones).

The product of its digits is 1470, while the sum is 25.

The square root of 253771 is about 503.7568858090. The cubic root of 253771 is about 63.3112172703.

It can be divided in two parts, 253 and 771, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 253771 in words is "two hundred fifty-three thousand, seven hundred seventy-one".