56406155 has 16 divisors (see below), whose sum is σ = 76732320. Its totient is φ = 39460608.

The previous prime is 56406137. The next prime is 56406169. The reversal of 56406155 is 55160465.

56406155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56406155 - 2¹⁶ = 56340619 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21602 + ... + 24071.

It is an arithmetic number, because the mean of its divisors is an integer number (4795770).

Almost surely, 2^56406155 is an apocalyptic number.

56406155 is a deficient number, since it is larger than the sum of its proper divisors (20326165).

56406155 is a wasteful number, since it uses less digits than its factorization.

56406155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45710.

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

The square root of 56406155 is about 7510.4031183419. The cubic root of 56406155 is about 383.5089457912.

The spelling of 56406155 in words is "fifty-six million, four hundred six thousand, one hundred fifty-five".