53044020 has 72 divisors (see below), whose sum is σ = 162011304. Its totient is φ = 14047488.

The previous prime is 53044001. The next prime is 53044031. The reversal of 53044020 is 2044035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4016016 + 49028004 = 2004^2 + 7002^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 53043984 and 53044002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27322 + ... + 29198.

It is an arithmetic number, because the mean of its divisors is an integer number (2250157).

Almost surely, 2^53044020 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 53044020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81005652).

53044020 is an abundant number, since it is smaller than the sum of its proper divisors (108967284).

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

53044020 is a wasteful number, since it uses less digits than its factorization.

53044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 53044020 is about 7283.1325677898. The cubic root of 53044020 is about 375.7325414231.

Adding to 53044020 its reverse (2044035), we get a palindrome (55088055).

The spelling of 53044020 in words is "fifty-three million, forty-four thousand, twenty".