52522002 has 48 divisors (see below), whose sum is σ = 123079320. Its totient is φ = 16091136.

The previous prime is 52521971. The next prime is 52522007. The reversal of 52522002 is 20022525.

It can be written as a sum of positive squares in 4 ways, for example, as 45441081 + 7080921 = 6741^2 + 2661^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (52522007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90738 + ... + 91314.

Almost surely, 2^52522002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52522002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61539660).

52522002 is an abundant number, since it is smaller than the sum of its proper divisors (70557318).

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

52522002 is a wasteful number, since it uses less digits than its factorization.

52522002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 52522002 is about 7247.2064962991. The cubic root of 52522002 is about 374.4959200460.

Adding to 52522002 its reverse (20022525), we get a palindrome (72544527).

The spelling of 52522002 in words is "fifty-two million, five hundred twenty-two thousand, two".