54481157 has 2 divisors, whose sum is σ = 54481158. Its totient is φ = 54481156.

The previous prime is 54481153. The next prime is 54481159. The reversal of 54481157 is 75118445.

54481157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32821441 + 21659716 = 5729^2 + 4654^2 .

It is a cyclic number.

It is not a de Polignac number, because 54481157 - 2² = 54481153 is a prime.

It is a super-3 number, since 3×54481157³ (a number of 24 digits) contains 333 as substring.

Together with 54481159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54481153) 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 as a sum of consecutive naturals, namely, 27240578 + 27240579.

It is an arithmetic number, because the mean of its divisors is an integer number (27240579).

Almost surely, 2^54481157 is an apocalyptic number.

It is an amenable number.

54481157 is a deficient number, since it is larger than the sum of its proper divisors (1).

54481157 is an equidigital number, since it uses as much as digits as its factorization.

54481157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 35.

The square root of 54481157 is about 7381.1352107924. The cubic root of 54481157 is about 379.0956263693.

The spelling of 54481157 in words is "fifty-four million, four hundred eighty-one thousand, one hundred fifty-seven".