55820759 has 4 divisors (see below), whose sum is σ = 55908216. Its totient is φ = 55733304.

The previous prime is 55820749. The next prime is 55820761. The reversal of 55820759 is 95702855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95702855 = 5 ⋅19140571.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55820759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55820719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42764 + ... + 44049.

It is an arithmetic number, because the mean of its divisors is an integer number (13977054).

Almost surely, 2^55820759 is an apocalyptic number.

55820759 is a deficient number, since it is larger than the sum of its proper divisors (87457).

55820759 is an equidigital number, since it uses as much as digits as its factorization.

55820759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87456.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 55820759 is about 7471.3291320889. The cubic root of 55820759 is about 382.1776149262.

The spelling of 55820759 in words is "fifty-five million, eight hundred twenty thousand, seven hundred fifty-nine".