52506020 has 24 divisors (see below), whose sum is σ = 126014784. Its totient is φ = 18002016.

The previous prime is 52506011. The next prime is 52506023. The reversal of 52506020 is 2060525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52505983 and 52506001.

It is not an unprimeable number, because it can be changed into a prime (52506023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187382 + ... + 187661.

It is an arithmetic number, because the mean of its divisors is an integer number (5250616).

Almost surely, 2^52506020 is an apocalyptic number.

It is an amenable number.

52506020 is an abundant number, since it is smaller than the sum of its proper divisors (73508764).

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

52506020 is a wasteful number, since it uses less digits than its factorization.

52506020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375059 (or 375057 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52506020 is about 7246.1037806534. The cubic root of 52506020 is about 374.4579308812.

Adding to 52506020 its reverse (2060525), we get a palindrome (54566545).

The spelling of 52506020 in words is "fifty-two million, five hundred six thousand, twenty".