55025278 has 32 divisors (see below), whose sum is σ = 103933440. Its totient is φ = 21224160.

The previous prime is 55025249. The next prime is 55025281. The reversal of 55025278 is 87252055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14128 + ... + 17596.

It is an arithmetic number, because the mean of its divisors is an integer number (3247920).

Almost surely, 2^55025278 is an apocalyptic number.

55025278 is a deficient number, since it is larger than the sum of its proper divisors (48908162).

55025278 is a wasteful number, since it uses less digits than its factorization.

55025278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 55025278 is about 7417.9025337355. The cubic root of 55025278 is about 380.3534983845.

The spelling of 55025278 in words is "fifty-five million, twenty-five thousand, two hundred seventy-eight".