55996478 has 16 divisors (see below), whose sum is σ = 86901120. Its totient is φ = 27033600.

The previous prime is 55996471. The next prime is 55996481. The reversal of 55996478 is 87469955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55996471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39038 + ... + 40446.

It is an arithmetic number, because the mean of its divisors is an integer number (5431320).

Almost surely, 2^55996478 is an apocalyptic number.

55996478 is a deficient number, since it is larger than the sum of its proper divisors (30904642).

55996478 is a wasteful number, since it uses less digits than its factorization.

55996478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083.

The product of its digits is 2721600, while the sum is 53.

The square root of 55996478 is about 7483.0794463242. The cubic root of 55996478 is about 382.5782157392.

The spelling of 55996478 in words is "fifty-five million, nine hundred ninety-six thousand, four hundred seventy-eight".