52102020 has 48 divisors (see below), whose sum is σ = 146841408. Its totient is φ = 13802880.

The previous prime is 52102013. The next prime is 52102049. The reversal of 52102020 is 2020125.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 52101987 and 52102005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6655 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (3059196).

Almost surely, 2^52102020 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 52102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73420704).

52102020 is an abundant number, since it is smaller than the sum of its proper divisors (94739388).

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

52102020 is a wasteful number, since it uses less digits than its factorization.

52102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700 (or 5698 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 52102020 is about 7218.1728990098. The cubic root of 52102020 is about 373.4950528816.

Adding to 52102020 its reverse (2020125), we get a palindrome (54122145).

The spelling of 52102020 in words is "fifty-two million, one hundred two thousand, twenty".