54572729 has 8 divisors (see below), whose sum is σ = 55160328. Its totient is φ = 53988480.

The previous prime is 54572723. The next prime is 54572747. The reversal of 54572729 is 92727545.

54572729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12996025 + 41576704 = 3605^2 + 6448^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54572729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54572723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43499 + ... + 44735.

It is an arithmetic number, because the mean of its divisors is an integer number (6895041).

Almost surely, 2^54572729 is an apocalyptic number.

It is an amenable number.

54572729 is a deficient number, since it is larger than the sum of its proper divisors (587599).

54572729 is a wasteful number, since it uses less digits than its factorization.

54572729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675.

The product of its digits is 176400, while the sum is 41.

The square root of 54572729 is about 7387.3357172935. The cubic root of 54572729 is about 379.3079022908.

It can be divided in two parts, 5457 and 2729, that multiplied together give a triangular number (14892153 = T₅₄₅₇).

The spelling of 54572729 in words is "fifty-four million, five hundred seventy-two thousand, seven hundred twenty-nine".