55826478 has 12 divisors (see below), whose sum is σ = 120957408. Its totient is φ = 18608820.

The previous prime is 55826473. The next prime is 55826527. The reversal of 55826478 is 87462855.

55826478 is a `hidden beast` number, since 5 + 582 + 64 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55826471) 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, 1550718 + ... + 1550753.

It is an arithmetic number, because the mean of its divisors is an integer number (10079784).

Almost surely, 2^55826478 is an apocalyptic number.

55826478 is an abundant number, since it is smaller than the sum of its proper divisors (65130930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55826478 is a wasteful number, since it uses less digits than its factorization.

55826478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101479 (or 3101476 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 55826478 is about 7471.7118520457. The cubic root of 55826478 is about 382.1906662186.

The spelling of 55826478 in words is "fifty-five million, eight hundred twenty-six thousand, four hundred seventy-eight".