54542521 has 8 divisors (see below), whose sum is σ = 62632800. Its totient is φ = 46974240.

The previous prime is 54542507. The next prime is 54542531. The reversal of 54542521 is 12524545.

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

It is a cyclic number.

It is not a de Polignac number, because 54542521 - 2¹³ = 54534329 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 54542521.

It is not an unprimeable number, because it can be changed into a prime (54542531) 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, 130276 + ... + 130693.

It is an arithmetic number, because the mean of its divisors is an integer number (7829100).

Almost surely, 2^54542521 is an apocalyptic number.

It is an amenable number.

54542521 is a deficient number, since it is larger than the sum of its proper divisors (8090279).

54542521 is a wasteful number, since it uses less digits than its factorization.

54542521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260999.

The product of its digits is 8000, while the sum is 28.

The square root of 54542521 is about 7385.2908541235. The cubic root of 54542521 is about 379.2379024445.

The spelling of 54542521 in words is "fifty-four million, five hundred forty-two thousand, five hundred twenty-one".