52550532 has 60 divisors (see below), whose sum is σ = 138152476. Its totient is φ = 17418240.

The previous prime is 52550521. The next prime is 52550539. The reversal of 52550532 is 23505525.

It can be written as a sum of positive squares in 2 ways, for example, as 28579716 + 23970816 = 5346^2 + 4896^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 52550496 and 52550505.

It is not an unprimeable number, because it can be changed into a prime (52550539) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77748 + ... + 78420.

Almost surely, 2^52550532 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 52550532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69076238).

52550532 is an abundant number, since it is smaller than the sum of its proper divisors (85601944).

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

52550532 is a wasteful number, since it uses less digits than its factorization.

52550532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 52550532 is about 7249.1745737015. The cubic root of 52550532 is about 374.5637166150.

The spelling of 52550532 in words is "fifty-two million, five hundred fifty thousand, five hundred thirty-two".