249000560 has 20 divisors (see below), whose sum is σ = 578926488. Its totient is φ = 99600192.

The previous prime is 249000539. The next prime is 249000571. The reversal of 249000560 is 65000942.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556174 + ... + 1556333.

Almost surely, 2^249000560 is an apocalyptic number.

249000560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249000560 is an abundant number, since it is smaller than the sum of its proper divisors (329925928).

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

249000560 is a wasteful number, since it uses less digits than its factorization.

249000560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112520 (or 3112514 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 249000560 is about 15779.7515823285. The cubic root of 249000560 is about 629.1199267843.

The spelling of 249000560 in words is "two hundred forty-nine million, five hundred sixty", and thus it is an aban number.