54783540 has 120 divisors (see below), whose sum is σ = 196449792. Its totient is φ = 12519360.

The previous prime is 54783527. The next prime is 54783557. The reversal of 54783540 is 4538745.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 54783495 and 54783504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8925 + ... + 13755.

Almost surely, 2^54783540 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 54783540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98224896).

54783540 is an abundant number, since it is smaller than the sum of its proper divisors (141666252).

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

54783540 is a wasteful number, since it uses less digits than its factorization.

54783540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4859 (or 4848 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 54783540 is about 7401.5903696435. The cubic root of 54783540 is about 379.7956888769.

The spelling of 54783540 in words is "fifty-four million, seven hundred eighty-three thousand, five hundred forty".