52131305450 has 48 divisors (see below), whose sum is σ = 111125208960. Its totient is φ = 17823760320.

The previous prime is 52131305407. The next prime is 52131305453. The reversal of 52131305450 is 5450313125.

It is not an unprimeable number, because it can be changed into a prime (52131305453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81797 + ... + 333096.

It is an arithmetic number, because the mean of its divisors is an integer number (2315108520).

Almost surely, 2^52131305450 is an apocalyptic number.

52131305450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52131305450 is an abundant number, since it is smaller than the sum of its proper divisors (58993903510).

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

52131305450 is a wasteful number, since it uses less digits than its factorization.

52131305450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415271 (or 415266 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 52131305450 its reverse (5450313125), we get a palindrome (57581618575).

The spelling of 52131305450 in words is "fifty-two billion, one hundred thirty-one million, three hundred five thousand, four hundred fifty".