54075691 has 32 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 44352000.

The previous prime is 54075689. The next prime is 54075719. The reversal of 54075691 is 19657045.

54075691 = T₁₃₈ + T₁₃₉ + ... + T₆₈₈.

It is a cyclic number.

It is not a de Polignac number, because 54075691 - 2¹ = 54075689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54075691.

It is not an unprimeable number, because it can be changed into a prime (54075601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215316 + ... + 215566.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^54075691 is an apocalyptic number.

54075691 is a deficient number, since it is larger than the sum of its proper divisors (11242709).

54075691 is a wasteful number, since it uses less digits than its factorization.

54075691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 54075691 is about 7353.6175451270. The cubic root of 54075691 is about 378.1528337865.

The spelling of 54075691 in words is "fifty-four million, seventy-five thousand, six hundred ninety-one".