54865536 has 128 divisors (see below), whose sum is σ = 164505600. Its totient is φ = 16051200.

The previous prime is 54865519. The next prime is 54865537. The reversal of 54865536 is 63556845.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (54865537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130735 + ... + 131153.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 2^54865536 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 54865536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82252800).

54865536 is an abundant number, since it is smaller than the sum of its proper divisors (109640064).

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

54865536 is a wasteful number, since it uses less digits than its factorization.

54865536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 466 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 54865536 is about 7407.1273784106. The cubic root of 54865536 is about 379.9850778997.

The spelling of 54865536 in words is "fifty-four million, eight hundred sixty-five thousand, five hundred thirty-six".