54117791 has 16 divisors (see below), whose sum is σ = 68410944. Its totient is φ = 41658624.

The previous prime is 54117787. The next prime is 54117829. The reversal of 54117791 is 19771145.

It is not a de Polignac number, because 54117791 - 2² = 54117787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54117751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4670 + ... + 11403.

It is an arithmetic number, because the mean of its divisors is an integer number (4275684).

Almost surely, 2^54117791 is an apocalyptic number.

54117791 is a deficient number, since it is larger than the sum of its proper divisors (14293153).

54117791 is a wasteful number, since it uses less digits than its factorization.

54117791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16130.

The product of its digits is 8820, while the sum is 35.

The square root of 54117791 is about 7356.4795248814. The cubic root of 54117791 is about 378.2509438263.

The spelling of 54117791 in words is "fifty-four million, one hundred seventeen thousand, seven hundred ninety-one".