56151187 has 4 divisors (see below), whose sum is σ = 59454216. Its totient is φ = 52848160.

The previous prime is 56151167. The next prime is 56151197. The reversal of 56151187 is 78115165.

56151187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56151187 - 2¹⁹ = 55626899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56151127) 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 3 ways as a sum of consecutive naturals, for example, 1651489 + ... + 1651522.

It is an arithmetic number, because the mean of its divisors is an integer number (14863554).

Almost surely, 2^56151187 is an apocalyptic number.

56151187 is a deficient number, since it is larger than the sum of its proper divisors (3303029).

56151187 is a wasteful number, since it uses less digits than its factorization.

56151187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303028.

The product of its digits is 8400, while the sum is 34.

The square root of 56151187 is about 7493.4095710831. The cubic root of 56151187 is about 382.9302251848.

The spelling of 56151187 in words is "fifty-six million, one hundred fifty-one thousand, one hundred eighty-seven".