253493 has 2 divisors, whose sum is σ = 253494. Its totient is φ = 253492.

The previous prime is 253481. The next prime is 253501. The reversal of 253493 is 394352.

253493 is nontrivially palindromic in base 6.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253009 + 484 = 503^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 253493 - 2¹² = 249397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126746 + 126747.

It is an arithmetic number, because the mean of its divisors is an integer number (126747).

2²⁵³⁴⁹³ is an apocalyptic number.

It is an amenable number.

253493 is a deficient number, since it is larger than the sum of its proper divisors (1).

253493 is an equidigital number, since it uses as much as digits as its factorization.

253493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 253493 is about 503.4808834504. The cubic root of 253493 is about 63.2880901868.

It can be divided in two parts, 25349 and 3, that added together give a palindrome (25352).

The spelling of 253493 in words is "two hundred fifty-three thousand, four hundred ninety-three".