253550 has 24 divisors (see below), whose sum is σ = 515592. Its totient is φ = 92000.

The previous prime is 253543. The next prime is 253553. The reversal of 253550 is 55352.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253550.

It is not an unprimeable number, because it can be changed into a prime (253553) 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, 320 + ... + 780.

It is an arithmetic number, because the mean of its divisors is an integer number (21483).

2²⁵³⁵⁵⁰ is an apocalyptic number.

253550 is an abundant number, since it is smaller than the sum of its proper divisors (262042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253550 is a wasteful number, since it uses less digits than its factorization.

253550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 253550 is about 503.5374861914. The cubic root of 253550 is about 63.2928334483.

The spelling of 253550 in words is "two hundred fifty-three thousand, five hundred fifty".