53020152 has 96 divisors (see below), whose sum is σ = 151800480. Its totient is φ = 16684800.

The previous prime is 53020147. The next prime is 53020153. The reversal of 53020152 is 25102035.

It is a happy number.

It is a super-2 number, since 2×53020152² = 5622273036206208, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167098 + ... + 167414.

It is an arithmetic number, because the mean of its divisors is an integer number (1581255).

Almost surely, 2^53020152 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 53020152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75900240).

53020152 is an abundant number, since it is smaller than the sum of its proper divisors (98780328).

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

53020152 is a wasteful number, since it uses less digits than its factorization.

53020152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 53020152 is about 7281.4938027852. The cubic root of 53020152 is about 375.6761773583.

Adding to 53020152 its reverse (25102035), we get a palindrome (78122187).

The spelling of 53020152 in words is "fifty-three million, twenty thousand, one hundred fifty-two".