54500521 has 8 divisors (see below), whose sum is σ = 59114664. Its totient is φ = 50042880.

The previous prime is 54500507. The next prime is 54500543. The reversal of 54500521 is 12500545.

It can be written as a sum of positive squares in 4 ways, for example, as 404496 + 54096025 = 636^2 + 7355^2 .

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 54500521 - 2⁵ = 54500489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54500492 and 54500501.

It is not an unprimeable number, because it can be changed into a prime (54500561) 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, 38400 + ... + 39793.

It is an arithmetic number, because the mean of its divisors is an integer number (7389333).

Almost surely, 2^54500521 is an apocalyptic number.

It is an amenable number.

54500521 is a deficient number, since it is larger than the sum of its proper divisors (4614143).

54500521 is a wasteful number, since it uses less digits than its factorization.

54500521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78251.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 54500521 is about 7382.4468166049. The cubic root of 54500521 is about 379.1405344842.

The spelling of 54500521 in words is "fifty-four million, five hundred thousand, five hundred twenty-one".