52525530 has 64 divisors (see below), whose sum is σ = 140849280. Its totient is φ = 13928832.

The previous prime is 52525493. The next prime is 52525541. The reversal of 52525530 is 3552525.

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 = 52525494 and 52525503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60862 + ... + 61718.

It is an arithmetic number, because the mean of its divisors is an integer number (2200770).

Almost surely, 2^52525530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52525530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70424640).

52525530 is an abundant number, since it is smaller than the sum of its proper divisors (88323750).

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

52525530 is a wasteful number, since it uses less digits than its factorization.

52525530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

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

The square root of 52525530 is about 7247.4498963429. The cubic root of 52525530 is about 374.5043050528.

The spelling of 52525530 in words is "fifty-two million, five hundred twenty-five thousand, five hundred thirty".