53444520 has 48 divisors (see below), whose sum is σ = 173695860. Its totient is φ = 14251776.

The previous prime is 53444519. The next prime is 53444533. The reversal of 53444520 is 2544435.

It can be written as a sum of positive squares in 2 ways, for example, as 53319204 + 125316 = 7302^2 + 354^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 73869 + ... + 74588.

Almost surely, 2^53444520 is an apocalyptic number.

It is an amenable number.

53444520 is an abundant number, since it is smaller than the sum of its proper divisors (120251340).

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

53444520 is a wasteful number, since it uses less digits than its factorization.

53444520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148474 (or 148467 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 53444520 is about 7310.5759007071. The cubic root of 53444520 is about 376.6758066368.

Adding to 53444520 its reverse (2544435), we get a palindrome (55988955).

It can be divided in two parts, 534 and 44520, that added together give a palindrome (45054).

The spelling of 53444520 in words is "fifty-three million, four hundred forty-four thousand, five hundred twenty".