52521102 has 16 divisors (see below), whose sum is σ = 116713680. Its totient is φ = 17507016.

The previous prime is 52521101. The next prime is 52521107. The reversal of 52521102 is 20112525.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52521101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486253 + ... + 486360.

It is an arithmetic number, because the mean of its divisors is an integer number (7294605).

Almost surely, 2^52521102 is an apocalyptic number.

52521102 is an abundant number, since it is smaller than the sum of its proper divisors (64192578).

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

52521102 is a wasteful number, since it uses less digits than its factorization.

52521102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972624 (or 972618 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52521102 is about 7247.1444031425. The cubic root of 52521102 is about 374.4937809536.

Adding to 52521102 its reverse (20112525), we get a palindrome (72633627).

The spelling of 52521102 in words is "fifty-two million, five hundred twenty-one thousand, one hundred two".