52144020 has 96 divisors (see below), whose sum is σ = 164989440. Its totient is φ = 13668480.

The previous prime is 52143991. The next prime is 52144031. The reversal of 52144020 is 2044125.

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 = 52143984 and 52144002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32149 + ... + 33731.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^52144020 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 52144020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82494720).

52144020 is an abundant number, since it is smaller than the sum of its proper divisors (112845420).

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

52144020 is a wasteful number, since it uses less digits than its factorization.

52144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 52144020 is about 7221.0816364309. The cubic root of 52144020 is about 373.5953853896.

Adding to 52144020 its reverse (2044125), we get a palindrome (54188145).

The spelling of 52144020 in words is "fifty-two million, one hundred forty-four thousand, twenty".