53944520 has 128 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 17418240.

The previous prime is 53944493. The next prime is 53944529. The reversal of 53944520 is 2544935.

53944520 = T₄₆₄ + T₄₆₅ + ... + T₇₅₀.

It is a happy number.

It is a super-2 number, since 2×53944520² = 5820022476060800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53944529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424697 + ... + 424823.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^53944520 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 53944520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73543680).

53944520 is an abundant number, since it is smaller than the sum of its proper divisors (93142840).

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

53944520 is a wasteful number, since it uses less digits than its factorization.

53944520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 53944520 is about 7344.6933223927. The cubic root of 53944520 is about 377.8468253902.

The spelling of 53944520 in words is "fifty-three million, nine hundred forty-four thousand, five hundred twenty".