55808829 has 6 divisors (see below), whose sum is σ = 80612766. Its totient is φ = 37205880.

The previous prime is 55808821. The next prime is 55808843. The reversal of 55808829 is 92880855.

It can be written as a sum of positive squares in only one way, i.e., 52925625 + 2883204 = 7275^2 + 1698^2 .

It is not a de Polignac number, because 55808829 - 2³ = 55808821 is a prime.

It is a super-2 number, since 2×55808829² = 6229250788702482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55808821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3100482 + ... + 3100499.

It is an arithmetic number, because the mean of its divisors is an integer number (13435461).

Almost surely, 2^55808829 is an apocalyptic number.

It is an amenable number.

55808829 is a deficient number, since it is larger than the sum of its proper divisors (24803937).

55808829 is a wasteful number, since it uses less digits than its factorization.

55808829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200987 (or 6200984 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The square root of 55808829 is about 7470.5307040397. The cubic root of 55808829 is about 382.1503866818.

The spelling of 55808829 in words is "fifty-five million, eight hundred eight thousand, eight hundred twenty-nine".