55838817 has 6 divisors (see below), whose sum is σ = 80656082. Its totient is φ = 37225872.

The previous prime is 55838807. The next prime is 55838819. The reversal of 55838817 is 71883855.

It is a happy number.

55838817 is a `hidden beast` number, since 558 + 3 + 88 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46253601 + 9585216 = 6801^2 + 3096^2 .

It is not a de Polignac number, because 55838817 - 2⁴ = 55838801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55838819) 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, 3102148 + ... + 3102165.

Almost surely, 2^55838817 is an apocalyptic number.

It is an amenable number.

55838817 is a deficient number, since it is larger than the sum of its proper divisors (24817265).

55838817 is a wasteful number, since it uses less digits than its factorization.

55838817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204319 (or 6204316 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 55838817 is about 7472.5375208158. The cubic root of 55838817 is about 382.2188219337.

It can be divided in two parts, 5583 and 8817, that added together give a square (14400 = 120²).

The spelling of 55838817 in words is "fifty-five million, eight hundred thirty-eight thousand, eight hundred seventeen".