55948478 has 4 divisors (see below), whose sum is σ = 83922720. Its totient is φ = 27974238.

The previous prime is 55948469. The next prime is 55948493. The reversal of 55948478 is 87484955.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13987118 + ... + 13987121.

It is an arithmetic number, because the mean of its divisors is an integer number (20980680).

Almost surely, 2^55948478 is an apocalyptic number.

55948478 is a deficient number, since it is larger than the sum of its proper divisors (27974242).

55948478 is a wasteful number, since it uses less digits than its factorization.

55948478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27974241.

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

The square root of 55948478 is about 7479.8715229608. The cubic root of 55948478 is about 382.4688695527.

The spelling of 55948478 in words is "fifty-five million, nine hundred forty-eight thousand, four hundred seventy-eight".