54781959 has 8 divisors (see below), whose sum is σ = 76887040. Its totient is φ = 34599096.

The previous prime is 54781949. The next prime is 54781963. The reversal of 54781959 is 95918745.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54781959 - 2⁴ = 54781943 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 (54781949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480487 + ... + 480600.

It is an arithmetic number, because the mean of its divisors is an integer number (9610880).

Almost surely, 2^54781959 is an apocalyptic number.

54781959 is a deficient number, since it is larger than the sum of its proper divisors (22105081).

54781959 is a wasteful number, since it uses less digits than its factorization.

54781959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961109.

The product of its digits is 453600, while the sum is 48.

The square root of 54781959 is about 7401.4835675019. The cubic root of 54781959 is about 379.7920353296.

The spelling of 54781959 in words is "fifty-four million, seven hundred eighty-one thousand, nine hundred fifty-nine".