249550 has 48 divisors (see below), whose sum is σ = 571392. Its totient is φ = 79200.

The previous prime is 249541. The next prime is 249563. The reversal of 249550 is 55942.

249550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

249550 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 in 23 ways as a sum of consecutive naturals, for example, 8035 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (11904).

2²⁴⁹⁵⁵⁰ is an apocalyptic number.

249550 is an abundant number, since it is smaller than the sum of its proper divisors (321842).

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

249550 is a wasteful number, since it uses less digits than its factorization.

249550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 249550 is about 499.5497973175. The cubic root of 249550 is about 62.9582321620.

It can be divided in two parts, 2495 and 50, that multiplied together give a triangular number (124750 = T₄₉₉).

The spelling of 249550 in words is "two hundred forty-nine thousand, five hundred fifty".