53644030 has 32 divisors (see below), whose sum is σ = 110885760. Its totient is φ = 18479520.

The previous prime is 53644001. The next prime is 53644033. The reversal of 53644030 is 3044635.

It is a junction number, because it is equal to n+sod(n) for n = 53643986 and 53644004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644033) 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, 10744 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (3465180).

Almost surely, 2^53644030 is an apocalyptic number.

53644030 is an abundant number, since it is smaller than the sum of its proper divisors (57241730).

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

53644030 is a wasteful number, since it uses less digits than its factorization.

53644030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25704.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 53644030 is about 7324.2084896595. The cubic root of 53644030 is about 377.1439386393.

Adding to 53644030 its reverse (3044635), we get a palindrome (56688665).

The spelling of 53644030 in words is "fifty-three million, six hundred forty-four thousand, thirty".