6653651 has 4 divisors (see below), whose sum is σ = 6683712. Its totient is φ = 6623592.

The previous prime is 6653641. The next prime is 6653653. The reversal of 6653651 is 1563566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6653651 - 2⁶ = 6653587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6653653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14696 + ... + 15141.

It is an arithmetic number, because the mean of its divisors is an integer number (1670928).

Almost surely, 2^6653651 is an apocalyptic number.

6653651 is a deficient number, since it is larger than the sum of its proper divisors (30061).

6653651 is a wasteful number, since it uses less digits than its factorization.

6653651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30060.

The product of its digits is 16200, while the sum is 32.

The square root of 6653651 is about 2579.4671930459. The cubic root of 6653651 is about 188.0846438676.

The spelling of 6653651 in words is "six million, six hundred fifty-three thousand, six hundred fifty-one".