53644100 has 18 divisors (see below), whose sum is σ = 116407914. Its totient is φ = 21457600.

The previous prime is 53644099. The next prime is 53644103. The reversal of 53644100 is 144635.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12376324 + 41267776 = 3518^2 + 6424^2 .

It is not an unprimeable number, because it can be changed into a prime (53644103) 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 5 ways as a sum of consecutive naturals, for example, 268121 + ... + 268320.

Almost surely, 2^53644100 is an apocalyptic number.

53644100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53644100 is an abundant number, since it is smaller than the sum of its proper divisors (62763814).

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

53644100 is a wasteful number, since it uses less digits than its factorization.

53644100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536455 (or 536448 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 53644100 is about 7324.2132683313. The cubic root of 53644100 is about 377.1441026840.

Adding to 53644100 its reverse (144635), we get a palindrome (53788735).

The spelling of 53644100 in words is "fifty-three million, six hundred forty-four thousand, one hundred".