56211151 has 4 divisors (see below), whose sum is σ = 56266704. Its totient is φ = 56155600.

The previous prime is 56211137. The next prime is 56211157. The reversal of 56211151 is 15111265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56211151 - 2⁵ = 56211119 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56211157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26230 + ... + 28291.

It is an arithmetic number, because the mean of its divisors is an integer number (14066676).

Almost surely, 2^56211151 is an apocalyptic number.

56211151 is a deficient number, since it is larger than the sum of its proper divisors (55553).

56211151 is a wasteful number, since it uses less digits than its factorization.

56211151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55552.

The product of its digits is 300, while the sum is 22.

The square root of 56211151 is about 7497.4096193285. The cubic root of 56211151 is about 383.0664874223.

The spelling of 56211151 in words is "fifty-six million, two hundred eleven thousand, one hundred fifty-one".