52552500 has 360 divisors, whose sum is σ = 209407968. Its totient is φ = 10080000.

The previous prime is 52552441. The next prime is 52552501. The reversal of 52552500 is 525525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52552501) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4042494 + ... + 4042506.

Almost surely, 2^52552500 is an apocalyptic number.

52552500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52552500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104703984).

52552500 is an abundant number, since it is smaller than the sum of its proper divisors (156855468).

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

52552500 is a wasteful number, since it uses less digits than its factorization.

52552500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 52552500 is about 7249.3103120228. The cubic root of 52552500 is about 374.5683923190.

Multiplying 52552500 by its reverse (525525), we get a square (27617652562500 = 5255250²).

52552500 divided by its reverse (525525) gives a square (100 = 10²).

It can be divided in two parts, 525 and 52500, that multiplied together give a square (27562500 = 5250²).

The spelling of 52552500 in words is "fifty-two million, five hundred fifty-two thousand, five hundred".