5507021 has 4 divisors (see below), whose sum is σ = 5930652. Its totient is φ = 5083392.

The previous prime is 5507009. The next prime is 5507023. The reversal of 5507021 is 1207055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1155625 + 4351396 = 1075^2 + 2086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5507021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5506984 and 5507002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5507023) 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, 211796 + ... + 211821.

It is an arithmetic number, because the mean of its divisors is an integer number (1482663).

Almost surely, 2^5507021 is an apocalyptic number.

It is an amenable number.

5507021 is a deficient number, since it is larger than the sum of its proper divisors (423631).

5507021 is a wasteful number, since it uses less digits than its factorization.

5507021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423630.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 5507021 is about 2346.7042847364. The cubic root of 5507021 is about 176.5924956635.

The spelling of 5507021 in words is "five million, five hundred seven thousand, twenty-one".