54478529 has 16 divisors (see below), whose sum is σ = 65980800. Its totient is φ = 43939584.

The previous prime is 54478519. The next prime is 54478537. The reversal of 54478529 is 92587445.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54478529 - 2²⁰ = 53429953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54478529.

It is not an unprimeable number, because it can be changed into a prime (54478519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19577 + ... + 22185.

It is an arithmetic number, because the mean of its divisors is an integer number (4123800).

Almost surely, 2^54478529 is an apocalyptic number.

It is an amenable number.

54478529 is a deficient number, since it is larger than the sum of its proper divisors (11502271).

54478529 is a wasteful number, since it uses less digits than its factorization.

54478529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792.

The product of its digits is 403200, while the sum is 44.

The square root of 54478529 is about 7380.9571872488. The cubic root of 54478529 is about 379.0895308103.

The spelling of 54478529 in words is "fifty-four million, four hundred seventy-eight thousand, five hundred twenty-nine".