5540651 has 4 divisors (see below), whose sum is σ = 5547600. Its totient is φ = 5533704.

The previous prime is 5540641. The next prime is 5540659. The reversal of 5540651 is 1560455.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5540651.

It is not an unprimeable number, because it can be changed into a prime (5540659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2096 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (1386900).

Almost surely, 2^5540651 is an apocalyptic number.

5540651 is a deficient number, since it is larger than the sum of its proper divisors (6949).

5540651 is an equidigital number, since it uses as much as digits as its factorization.

5540651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 5540651 is about 2353.8587468240. The cubic root of 5540651 is about 176.9512351431.

The spelling of 5540651 in words is "five million, five hundred forty thousand, six hundred fifty-one".