253669 has 12 divisors (see below), whose sum is σ = 292800. Its totient is φ = 219024.

The previous prime is 253661. The next prime is 253679. The reversal of 253669 is 966352.

253669 = T₉₄ + T₉₅ + ... + T₁₃₂.

It is not a de Polignac number, because 253669 - 2³ = 253661 is a prime.

It is a super-2 number, since 2×253669² = 128695923122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253661) 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 11 ways as a sum of consecutive naturals, for example, 3172 + ... + 3250.

It is an arithmetic number, because the mean of its divisors is an integer number (24400).

2²⁵³⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

253669 is a deficient number, since it is larger than the sum of its proper divisors (39131).

253669 is a wasteful number, since it uses less digits than its factorization.

253669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 111 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 253669 is about 503.6556363231. The cubic root of 253669 is about 63.3027337562.

The spelling of 253669 in words is "two hundred fifty-three thousand, six hundred sixty-nine".