52152420 has 48 divisors (see below), whose sum is σ = 146341440. Its totient is φ = 13877376.

The previous prime is 52152391. The next prime is 52152437. The reversal of 52152420 is 2425125.

It is a happy number.

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, 50671 + ... + 51689.

It is an arithmetic number, because the mean of its divisors is an integer number (3048780).

Almost surely, 2^52152420 is an apocalyptic number.

It is an amenable number.

52152420 is an abundant number, since it is smaller than the sum of its proper divisors (94189020).

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

52152420 is a wasteful number, since it uses less digits than its factorization.

52152420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884 (or 1882 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52152420 is about 7221.6632433256. The cubic root of 52152420 is about 373.6154454255.

Adding to 52152420 its reverse (2425125), we get a palindrome (54577545).

The spelling of 52152420 in words is "fifty-two million, one hundred fifty-two thousand, four hundred twenty".