54535540 has 24 divisors (see below), whose sum is σ = 114798600. Its totient is φ = 21762048.

The previous prime is 54535519. The next prime is 54535549. The reversal of 54535540 is 4553545.

It can be written as a sum of positive squares in 4 ways, for example, as 18198756 + 36336784 = 4266^2 + 6028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54535549) 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, 5944 + ... + 12016.

It is an arithmetic number, because the mean of its divisors is an integer number (4783275).

Almost surely, 2^54535540 is an apocalyptic number.

It is an amenable number.

54535540 is an abundant number, since it is smaller than the sum of its proper divisors (60263060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54535540 is a wasteful number, since it uses less digits than its factorization.

54535540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 54535540 is about 7384.8182103556. The cubic root of 54535540 is about 379.2217219630.

The spelling of 54535540 in words is "fifty-four million, five hundred thirty-five thousand, five hundred forty".