55357478 has 8 divisors (see below), whose sum is σ = 90585000. Its totient is φ = 25162480.

The previous prime is 55357451. The next prime is 55357501. The reversal of 55357478 is 87475355.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258103 + ... + 1258146.

It is an arithmetic number, because the mean of its divisors is an integer number (11323125).

Almost surely, 2^55357478 is an apocalyptic number.

55357478 is a deficient number, since it is larger than the sum of its proper divisors (35227522).

55357478 is a wasteful number, since it uses less digits than its factorization.

55357478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516262.

The product of its digits is 588000, while the sum is 44.

The square root of 55357478 is about 7440.2606137151. The cubic root of 55357478 is about 381.1173897659.

The spelling of 55357478 in words is "fifty-five million, three hundred fifty-seven thousand, four hundred seventy-eight".