2649533 has 8 divisors (see below), whose sum is σ = 2751960. Its totient is φ = 2548800.

The previous prime is 2649529. The next prime is 2649541. The reversal of 2649533 is 3359462.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 1530169 = 1058^2 + 1237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2649533 - 2² = 2649529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2649533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649503) 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 7 ways as a sum of consecutive naturals, for example, 3383 + ... + 4091.

It is an arithmetic number, because the mean of its divisors is an integer number (343995).

2^2649533 is an apocalyptic number.

It is an amenable number.

2649533 is a deficient number, since it is larger than the sum of its proper divisors (102427).

2649533 is a wasteful number, since it uses less digits than its factorization.

2649533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 19440, while the sum is 32.

The square root of 2649533 is about 1627.7386153802. The cubic root of 2649533 is about 138.3746209882.

The spelling of 2649533 in words is "two million, six hundred forty-nine thousand, five hundred thirty-three".