54263691 has 6 divisors (see below), whose sum is σ = 78380900. Its totient is φ = 36175788.

The previous prime is 54263683. The next prime is 54263701. The reversal of 54263691 is 19636245.

It is a happy number.

54263691 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 54263691 - 2³ = 54263683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54263621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3014641 + ... + 3014658.

Almost surely, 2^54263691 is an apocalyptic number.

54263691 is a deficient number, since it is larger than the sum of its proper divisors (24117209).

54263691 is a wasteful number, since it uses less digits than its factorization.

54263691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029305 (or 6029302 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 54263691 is about 7366.3892783371. The cubic root of 54263691 is about 378.5905566832.

The spelling of 54263691 in words is "fifty-four million, two hundred sixty-three thousand, six hundred ninety-one".