55884013 has 2 divisors, whose sum is σ = 55884014. Its totient is φ = 55884012.

The previous prime is 55884001. The next prime is 55884019. The reversal of 55884013 is 31048855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 2696164 = 7293^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 55884013 - 2¹⁷ = 55752941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55884013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55884019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27942006 + 27942007.

It is an arithmetic number, because the mean of its divisors is an integer number (27942007).

Almost surely, 2^55884013 is an apocalyptic number.

It is an amenable number.

55884013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55884013 is an equidigital number, since it uses as much as digits as its factorization.

55884013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 55884013 is about 7475.5610491789. The cubic root of 55884013 is about 382.3219169022.

The spelling of 55884013 in words is "fifty-five million, eight hundred eighty-four thousand, thirteen".