53444556 has 48 divisors (see below), whose sum is σ = 151159680. Its totient is φ = 16194960.

The previous prime is 53444551. The next prime is 53444569. The reversal of 53444556 is 65544435.

It is a super-3 number, since 3×53444556³ (a number of 24 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53444556.

It is not an unprimeable number, because it can be changed into a prime (53444551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21306 + ... + 23681.

It is an arithmetic number, because the mean of its divisors is an integer number (3149160).

Almost surely, 2^53444556 is an apocalyptic number.

It is an amenable number.

53444556 is an abundant number, since it is smaller than the sum of its proper divisors (97715124).

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

53444556 is a wasteful number, since it uses less digits than its factorization.

53444556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45011 (or 45003 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 53444556 is about 7310.5783628930. The cubic root of 53444556 is about 376.6758912126.

The spelling of 53444556 in words is "fifty-three million, four hundred forty-four thousand, five hundred fifty-six".