5531021407 has 2 divisors, whose sum is σ = 5531021408. Its totient is φ = 5531021406.

The previous prime is 5531021399. The next prime is 5531021449. The reversal of 5531021407 is 7041201355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5531021407 - 2³ = 5531021399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531021497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765510703 + 2765510704.

It is an arithmetic number, because the mean of its divisors is an integer number (2765510704).

Almost surely, 2^5531021407 is an apocalyptic number.

5531021407 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531021407 is an equidigital number, since it uses as much as digits as its factorization.

5531021407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 5531021407 is about 74370.8370734120. The cubic root of 5531021407 is about 1768.4866256997.

The spelling of 5531021407 in words is "five billion, five hundred thirty-one million, twenty-one thousand, four hundred seven".