54040536 has 72 divisors (see below), whose sum is σ = 160900740. Its totient is φ = 16373280.

The previous prime is 54040523. The next prime is 54040537. The reversal of 54040536 is 63504045.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54040537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5611 + ... + 11813.

Almost surely, 2^54040536 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 54040536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80450370).

54040536 is an abundant number, since it is smaller than the sum of its proper divisors (106860204).

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

54040536 is a wasteful number, since it uses less digits than its factorization.

54040536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237 (or 6219 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 54040536 is about 7351.2268363859. The cubic root of 54040536 is about 378.0708693863.

The spelling of 54040536 in words is "fifty-four million, forty thousand, five hundred thirty-six".