56471155 has 8 divisors (see below), whose sum is σ = 72978192. Its totient is φ = 41701728.

The previous prime is 56471143. The next prime is 56471183. The reversal of 56471155 is 55117465.

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

It is a cyclic number.

It is not a de Polignac number, because 56471155 - 2⁷ = 56471027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56471155.

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 7 ways as a sum of consecutive naturals, for example, 434329 + ... + 434458.

It is an arithmetic number, because the mean of its divisors is an integer number (9122274).

Almost surely, 2^56471155 is an apocalyptic number.

56471155 is a deficient number, since it is larger than the sum of its proper divisors (16507037).

56471155 is a wasteful number, since it uses less digits than its factorization.

56471155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868805.

The product of its digits is 21000, while the sum is 34.

The square root of 56471155 is about 7514.7292033712. The cubic root of 56471155 is about 383.6562022520.

The spelling of 56471155 in words is "fifty-six million, four hundred seventy-one thousand, one hundred fifty-five".