54681959 has 4 divisors (see below), whose sum is σ = 54697416. Its totient is φ = 54666504.

The previous prime is 54681953. The next prime is 54681961. The reversal of 54681959 is 95918645.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54681959 - 2¹² = 54677863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54681953) 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, 497 + ... + 10469.

It is an arithmetic number, because the mean of its divisors is an integer number (13674354).

Almost surely, 2^54681959 is an apocalyptic number.

54681959 is a deficient number, since it is larger than the sum of its proper divisors (15457).

54681959 is an equidigital number, since it uses as much as digits as its factorization.

54681959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15456.

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

The square root of 54681959 is about 7394.7250794063. The cubic root of 54681959 is about 379.5608014404.

The spelling of 54681959 in words is "fifty-four million, six hundred eighty-one thousand, nine hundred fifty-nine".