52072020 has 432 divisors, whose sum is σ = 225283968. Its totient is φ = 9400320.

The previous prime is 52072019. The next prime is 52072109. The reversal of 52072020 is 2027025.

52072020 = T₈₅ + T₈₆ + ... + T₆₇₈.

It is a happy number.

It is a super-2 number, since 2×52072020² = 5422990533760800, which contains 22 as substring.

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 = 52071984 and 52072002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3063052 + ... + 3063068.

Almost surely, 2^52072020 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 52072020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112641984).

52072020 is an abundant number, since it is smaller than the sum of its proper divisors (173211948).

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

52072020 is a wasteful number, since it uses less digits than its factorization.

52072020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 52072020 is about 7216.0945115762. The cubic root of 52072020 is about 373.4233537880.

Adding to 52072020 its reverse (2027025), we get a palindrome (54099045).

It can be divided in two parts, 5207 and 2020, that added together give a palindrome (7227).

The spelling of 52072020 in words is "fifty-two million, seventy-two thousand, twenty".