56155442 has 8 divisors (see below), whose sum is σ = 96266496. Its totient is φ = 24066612.

The previous prime is 56155439. The next prime is 56155453. The reversal of 56155442 is 24455165.

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

It is a junction number, because it is equal to n+sod(n) for n = 56155399 and 56155408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005538 + ... + 2005565.

It is an arithmetic number, because the mean of its divisors is an integer number (12033312).

Almost surely, 2^56155442 is an apocalyptic number.

56155442 is a deficient number, since it is larger than the sum of its proper divisors (40111054).

56155442 is a wasteful number, since it uses less digits than its factorization.

56155442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011112.

The product of its digits is 24000, while the sum is 32.

The square root of 56155442 is about 7493.6934818553. The cubic root of 56155442 is about 382.9398974467.

The spelling of 56155442 in words is "fifty-six million, one hundred fifty-five thousand, four hundred forty-two".