56622155 has 8 divisors (see below), whose sum is σ = 71943552. Its totient is φ = 42633088.

The previous prime is 56622143. The next prime is 56622157. The reversal of 56622155 is 55122665.

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 56622155 - 2⁸ = 56621899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56622157) 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, 332987 + ... + 333156.

It is an arithmetic number, because the mean of its divisors is an integer number (8992944).

Almost surely, 2^56622155 is an apocalyptic number.

56622155 is a deficient number, since it is larger than the sum of its proper divisors (15321397).

56622155 is a wasteful number, since it uses less digits than its factorization.

56622155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666165.

The product of its digits is 18000, while the sum is 32.

The square root of 56622155 is about 7524.7694316836. The cubic root of 56622155 is about 383.9978547153.

The spelling of 56622155 in words is "fifty-six million, six hundred twenty-two thousand, one hundred fifty-five".