56155149 has 6 divisors (see below), whose sum is σ = 81113006. Its totient is φ = 37436760.

The previous prime is 56155129. The next prime is 56155153. The reversal of 56155149 is 94155165.

56155149 is a `hidden beast` number, since 5 + 61 + 551 + 49 = 666.

56155149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 55398249 + 756900 = 7443^2 + 870^2 .

It is not a de Polignac number, because 56155149 - 2¹⁷ = 56024077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56155129) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3119722 + ... + 3119739.

Almost surely, 2^56155149 is an apocalyptic number.

It is an amenable number.

56155149 is a deficient number, since it is larger than the sum of its proper divisors (24957857).

56155149 is a wasteful number, since it uses less digits than its factorization.

56155149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239467 (or 6239464 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 56155149 is about 7493.6739320576. The cubic root of 56155149 is about 382.9392314288.

The spelling of 56155149 in words is "fifty-six million, one hundred fifty-five thousand, one hundred forty-nine".