55498478 has 12 divisors (see below), whose sum is σ = 96839352. Its totient is φ = 23785020.

The previous prime is 55498459. The next prime is 55498507. The reversal of 55498478 is 87489455.

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 5 ways as a sum of consecutive naturals, for example, 283058 + ... + 283253.

It is an arithmetic number, because the mean of its divisors is an integer number (8069946).

Almost surely, 2^55498478 is an apocalyptic number.

55498478 is a deficient number, since it is larger than the sum of its proper divisors (41340874).

55498478 is a wasteful number, since it uses less digits than its factorization.

55498478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566327 (or 566320 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The square root of 55498478 is about 7449.7300622237. The cubic root of 55498478 is about 381.4406944257.

The spelling of 55498478 in words is "fifty-five million, four hundred ninety-eight thousand, four hundred seventy-eight".