52510020 has 48 divisors (see below), whose sum is σ = 149448768. Its totient is φ = 13772160.

The previous prime is 52510019. The next prime is 52510037. The reversal of 52510020 is 2001525.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3514 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (3113516).

Almost surely, 2^52510020 is an apocalyptic number.

It is an amenable number.

52510020 is an abundant number, since it is smaller than the sum of its proper divisors (96938748).

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

52510020 is a wasteful number, since it uses less digits than its factorization.

52510020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14420 (or 14418 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 52510020 is about 7246.3797857965. The cubic root of 52510020 is about 374.4674395920.

Adding to 52510020 its reverse (2001525), we get a palindrome (54511545).

The spelling of 52510020 in words is "fifty-two million, five hundred ten thousand, twenty".