54156891 has 8 divisors (see below), whose sum is σ = 74699280. Its totient is φ = 34859552.

The previous prime is 54156857. The next prime is 54156899. The reversal of 54156891 is 19865145.

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 54156891 - 2⁶ = 54156827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54156899) 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, 311160 + ... + 311333.

It is an arithmetic number, because the mean of its divisors is an integer number (9337410).

Almost surely, 2^54156891 is an apocalyptic number.

54156891 is a deficient number, since it is larger than the sum of its proper divisors (20542389).

54156891 is a wasteful number, since it uses less digits than its factorization.

54156891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622525.

The product of its digits is 43200, while the sum is 39.

The square root of 54156891 is about 7359.1365662012. The cubic root of 54156891 is about 378.3420170898.

The spelling of 54156891 in words is "fifty-four million, one hundred fifty-six thousand, eight hundred ninety-one".