55874591 has 2 divisors, whose sum is σ = 55874592. Its totient is φ = 55874590.

The previous prime is 55874557. The next prime is 55874629. The reversal of 55874591 is 19547855.

55874591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55874591 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55874891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27937295 + 27937296.

It is an arithmetic number, because the mean of its divisors is an integer number (27937296).

Almost surely, 2^55874591 is an apocalyptic number.

55874591 is a deficient number, since it is larger than the sum of its proper divisors (1).

55874591 is an equidigital number, since it uses as much as digits as its factorization.

55874591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 44.

The square root of 55874591 is about 7474.9308358004. The cubic root of 55874591 is about 382.3004293045.

It can be divided in two parts, 55874 and 591, that added together give a palindrome (56465).

The spelling of 55874591 in words is "fifty-five million, eight hundred seventy-four thousand, five hundred ninety-one".