54695891 has 4 divisors (see below), whose sum is σ = 55623000. Its totient is φ = 53768784.

The previous prime is 54695869. The next prime is 54695897. The reversal of 54695891 is 19859645.

It is a happy number.

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 54695891 - 2¹⁰ = 54694867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54695897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463466 + ... + 463583.

It is an arithmetic number, because the mean of its divisors is an integer number (13905750).

Almost surely, 2^54695891 is an apocalyptic number.

54695891 is a deficient number, since it is larger than the sum of its proper divisors (927109).

54695891 is an equidigital number, since it uses as much as digits as its factorization.

54695891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927108.

The product of its digits is 388800, while the sum is 47.

The square root of 54695891 is about 7395.6670422620. The cubic root of 54695891 is about 379.5930338387.

The spelling of 54695891 in words is "fifty-four million, six hundred ninety-five thousand, eight hundred ninety-one".