55826289 has 12 divisors (see below), whose sum is σ = 80779972. Its totient is φ = 37152000.

The previous prime is 55826261. The next prime is 55826293. The reversal of 55826289 is 98262855.

55826289 is a `hidden beast` number, since 5 + 582 + 62 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39690000 + 16136289 = 6300^2 + 4017^2 .

It is not a de Polignac number, because 55826289 - 2²³ = 47437681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55826299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249 + ... + 10569.

Almost surely, 2^55826289 is an apocalyptic number.

It is an amenable number.

55826289 is a deficient number, since it is larger than the sum of its proper divisors (24953683).

55826289 is a wasteful number, since it uses less digits than its factorization.

55826289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928 (or 10925 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 55826289 is about 7471.6992043310. The cubic root of 55826289 is about 382.1902349171.

The spelling of 55826289 in words is "fifty-five million, eight hundred twenty-six thousand, two hundred eighty-nine".