54513540 has 96 divisors (see below), whose sum is σ = 170943360. Its totient is φ = 14421888.

The previous prime is 54513523. The next prime is 54513541. The reversal of 54513540 is 4531545.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (54513541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84459 + ... + 85101.

It is an arithmetic number, because the mean of its divisors is an integer number (1780660).

Almost surely, 2^54513540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54513540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85471680).

54513540 is an abundant number, since it is smaller than the sum of its proper divisors (116429820).

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

54513540 is a wasteful number, since it uses less digits than its factorization.

54513540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 54513540 is about 7383.3285176809. The cubic root of 54513540 is about 379.1707215818.

The spelling of 54513540 in words is "fifty-four million, five hundred thirteen thousand, five hundred forty".