54423691 has 16 divisors (see below), whose sum is σ = 64880640. Its totient is φ = 44664480.

The previous prime is 54423689. The next prime is 54423703. The reversal of 54423691 is 19632445.

It is a happy number.

It is not a de Polignac number, because 54423691 - 2¹ = 54423689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54423601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24726 + ... + 26836.

It is an arithmetic number, because the mean of its divisors is an integer number (4055040).

Almost surely, 2^54423691 is an apocalyptic number.

54423691 is a deficient number, since it is larger than the sum of its proper divisors (10456949).

54423691 is a wasteful number, since it uses less digits than its factorization.

54423691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its digits is 25920, while the sum is 34.

The square root of 54423691 is about 7377.2414221035. The cubic root of 54423691 is about 378.9622911362.

The spelling of 54423691 in words is "fifty-four million, four hundred twenty-three thousand, six hundred ninety-one".