6249564 has 18 divisors (see below), whose sum is σ = 15797600. Its totient is φ = 2083176.

The previous prime is 6249563. The next prime is 6249571. The reversal of 6249564 is 4659426.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 173599 = 6249564 / (6 + 2 + 4 + 9 + 5 + 6 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6249563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86764 + ... + 86835.

Almost surely, 2^6249564 is an apocalyptic number.

It is an amenable number.

6249564 is an abundant number, since it is smaller than the sum of its proper divisors (9548036).

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

6249564 is a wasteful number, since it uses less digits than its factorization.

6249564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173609 (or 173604 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 6249564 is about 2499.9127984792. The cubic root of 6249564 is about 184.1972915318.

The spelling of 6249564 in words is "six million, two hundred forty-nine thousand, five hundred sixty-four".