55425554 has 8 divisors (see below), whose sum is σ = 86005260. Its totient is φ = 26757136.

The previous prime is 55425541. The next prime is 55425599. The reversal of 55425554 is 45552455.

55425554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55160329 + 265225 = 7427^2 + 515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477749 + ... + 477864.

Almost surely, 2^55425554 is an apocalyptic number.

55425554 is a deficient number, since it is larger than the sum of its proper divisors (30579706).

55425554 is a wasteful number, since it uses less digits than its factorization.

55425554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955644.

The product of its digits is 100000, while the sum is 35.

The square root of 55425554 is about 7444.8340478482. The cubic root of 55425554 is about 381.2735524642.

The spelling of 55425554 in words is "fifty-five million, four hundred twenty-five thousand, five hundred fifty-four".