53870544 has 120 divisors (see below), whose sum is σ = 185599232. Its totient is φ = 14204160.

The previous prime is 53870533. The next prime is 53870549. The reversal of 53870544 is 44507835.

53870544 is a `hidden beast` number, since 538 + 70 + 54 + 4 = 666.

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 = 53870499 and 53870508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53870549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11049 + ... + 15159.

Almost surely, 2^53870544 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 53870544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92799616).

53870544 is an abundant number, since it is smaller than the sum of its proper divisors (131728688).

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

53870544 is a wasteful number, since it uses less digits than its factorization.

53870544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145 (or 4136 counting only the distinct ones).

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

The square root of 53870544 is about 7339.6555777502. The cubic root of 53870544 is about 377.6740282059.

The spelling of 53870544 in words is "fifty-three million, eight hundred seventy thousand, five hundred forty-four".