253486 has 4 divisors (see below), whose sum is σ = 380232. Its totient is φ = 126742.

The previous prime is 253481. The next prime is 253493. The reversal of 253486 is 684352.

253486 is nontrivially palindromic in base 7.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253481) by changing a digit.

253486 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63370 + ... + 63373.

It is an arithmetic number, because the mean of its divisors is an integer number (95058).

2²⁵³⁴⁸⁶ is an apocalyptic number.

253486 is a deficient number, since it is larger than the sum of its proper divisors (126746).

253486 is a wasteful number, since it uses less digits than its factorization.

253486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126745.

The product of its digits is 5760, while the sum is 28.

The square root of 253486 is about 503.4739317979. The cubic root of 253486 is about 63.2875076320.

The spelling of 253486 in words is "two hundred fifty-three thousand, four hundred eighty-six".