56424478 has 12 divisors (see below), whose sum is σ = 93030840. Its totient is φ = 25647380.

The previous prime is 56424463. The next prime is 56424493. The reversal of 56424478 is 87442465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56424463) and next prime (56424493).

It is a self number, because there is not a number n which added to its sum of digits gives 56424478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116338 + ... + 116821.

It is an arithmetic number, because the mean of its divisors is an integer number (7752570).

Almost surely, 2^56424478 is an apocalyptic number.

56424478 is a deficient number, since it is larger than the sum of its proper divisors (36606362).

56424478 is a wasteful number, since it uses less digits than its factorization.

56424478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233183 (or 233172 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 56424478 is about 7511.6228606074. The cubic root of 56424478 is about 383.5504677000.

The spelling of 56424478 in words is "fifty-six million, four hundred twenty-four thousand, four hundred seventy-eight".