54155967 has 4 divisors (see below), whose sum is σ = 72207960. Its totient is φ = 36103976.

The previous prime is 54155953. The next prime is 54156019. The reversal of 54155967 is 76955145.

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 54155967 - 2¹⁰ = 54154943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54155767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9025992 + ... + 9025997.

It is an arithmetic number, because the mean of its divisors is an integer number (18051990).

Almost surely, 2^54155967 is an apocalyptic number.

54155967 is a deficient number, since it is larger than the sum of its proper divisors (18051993).

54155967 is a wasteful number, since it uses less digits than its factorization.

54155967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18051992.

The product of its digits is 189000, while the sum is 42.

The square root of 54155967 is about 7359.0737868294. The cubic root of 54155967 is about 378.3398653783.

The spelling of 54155967 in words is "fifty-four million, one hundred fifty-five thousand, nine hundred sixty-seven".