54528769 has 4 divisors (see below), whose sum is σ = 54876244. Its totient is φ = 54181296.

The previous prime is 54528763. The next prime is 54528797. The reversal of 54528769 is 96782545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96782545 = 5 ⋅19356509.

It can be written as a sum of positive squares in 2 ways, for example, as 23892544 + 30636225 = 4888^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 54528769 - 2⁷ = 54528641 is a prime.

It is a super-2 number, since 2×54528769² = 5946773297310722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54528763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173502 + ... + 173815.

It is an arithmetic number, because the mean of its divisors is an integer number (13719061).

Almost surely, 2^54528769 is an apocalyptic number.

It is an amenable number.

54528769 is a deficient number, since it is larger than the sum of its proper divisors (347475).

54528769 is a wasteful number, since it uses less digits than its factorization.

54528769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347474.

The product of its digits is 604800, while the sum is 46.

The square root of 54528769 is about 7384.3597555915. The cubic root of 54528769 is about 379.2060268979.

The spelling of 54528769 in words is "fifty-four million, five hundred twenty-eight thousand, seven hundred sixty-nine".