54938181 has 8 divisors (see below), whose sum is σ = 74006464. Its totient is φ = 36247680.

The previous prime is 54938161. The next prime is 54938189. The reversal of 54938181 is 18183945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54938181 - 2²¹ = 52841029 is a prime.

It is a super-2 number, since 2×54938181² = 6036407463177522, which contains 22 as substring.

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 (54938189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94105 + ... + 94686.

It is an arithmetic number, because the mean of its divisors is an integer number (9250808).

Almost surely, 2^54938181 is an apocalyptic number.

It is an amenable number.

54938181 is a deficient number, since it is larger than the sum of its proper divisors (19068283).

54938181 is a wasteful number, since it uses less digits than its factorization.

54938181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188891.

The product of its digits is 34560, while the sum is 39.

The square root of 54938181 is about 7412.0294791643. The cubic root of 54938181 is about 380.1527110131.

The spelling of 54938181 in words is "fifty-four million, nine hundred thirty-eight thousand, one hundred eighty-one".