54791731 has 4 divisors (see below), whose sum is σ = 58014792. Its totient is φ = 51568672.

The previous prime is 54791719. The next prime is 54791741. The reversal of 54791731 is 13719745.

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 54791731 - 2¹⁷ = 54660659 is a prime.

It is a super-2 number, since 2×54791731² = 6004267571952722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54791741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611505 + ... + 1611538.

It is an arithmetic number, because the mean of its divisors is an integer number (14503698).

Almost surely, 2^54791731 is an apocalyptic number.

54791731 is a deficient number, since it is larger than the sum of its proper divisors (3223061).

54791731 is a wasteful number, since it uses less digits than its factorization.

54791731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223060.

The product of its digits is 26460, while the sum is 37.

The square root of 54791731 is about 7402.1436759901. The cubic root of 54791731 is about 379.8146164079.

The spelling of 54791731 in words is "fifty-four million, seven hundred ninety-one thousand, seven hundred thirty-one".