55385767 has 2 divisors, whose sum is σ = 55385768. Its totient is φ = 55385766.

The previous prime is 55385761. The next prime is 55385773. The reversal of 55385767 is 76758355.

It is a balanced prime because it is at equal distance from previous prime (55385761) and next prime (55385773).

It is a cyclic number.

It is not a de Polignac number, because 55385767 - 2⁷ = 55385639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55385761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27692883 + 27692884.

It is an arithmetic number, because the mean of its divisors is an integer number (27692884).

Almost surely, 2^55385767 is an apocalyptic number.

55385767 is a deficient number, since it is larger than the sum of its proper divisors (1).

55385767 is an equidigital number, since it uses as much as digits as its factorization.

55385767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882000, while the sum is 46.

The square root of 55385767 is about 7442.1614467841. The cubic root of 55385767 is about 381.1822987552.

It can be divided in two parts, 553 and 85767, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 55385767 in words is "fifty-five million, three hundred eighty-five thousand, seven hundred sixty-seven".