54487836 has 72 divisors (see below), whose sum is σ = 152907440. Its totient is φ = 16680384.

The previous prime is 54487819. The next prime is 54487859. The reversal of 54487836 is 63878445.

54487836 is a `hidden beast` number, since 544 + 8 + 78 + 36 = 666.

Its product of digits (645120) is a multiple of the sum of its prime factors (420).

It is a junction number, because it is equal to n+sod(n) for n = 54487791 and 54487800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276490 + ... + 276686.

Almost surely, 2^54487836 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 54487836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76453720).

54487836 is an abundant number, since it is smaller than the sum of its proper divisors (98419604).

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

54487836 is a wasteful number, since it uses less digits than its factorization.

54487836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 215 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 54487836 is about 7381.5876341069. The cubic root of 54487836 is about 379.1111172067. Note that the first 5 decimals are identical.

The spelling of 54487836 in words is "fifty-four million, four hundred eighty-seven thousand, eight hundred thirty-six".