551110639 has 2 divisors, whose sum is σ = 551110640. Its totient is φ = 551110638.

The previous prime is 551110633. The next prime is 551110657. The reversal of 551110639 is 936011155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551110639 - 2¹⁷ = 550979567 is a prime.

It is equal to p_28900732 and since 551110639 and 28900732 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551110639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551110633) 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, 275555319 + 275555320.

It is an arithmetic number, because the mean of its divisors is an integer number (275555320).

Almost surely, 2^551110639 is an apocalyptic number.

551110639 is a deficient number, since it is larger than the sum of its proper divisors (1).

551110639 is an equidigital number, since it uses as much as digits as its factorization.

551110639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 551110639 is about 23475.7457602522. The cubic root of 551110639 is about 819.8723968605.

The spelling of 551110639 in words is "five hundred fifty-one million, one hundred ten thousand, six hundred thirty-nine".