52131550 has 12 divisors (see below), whose sum is σ = 96964776. Its totient is φ = 20852600.

The previous prime is 52131517. The next prime is 52131551. The reversal of 52131550 is 5513125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131551) 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 5 ways as a sum of consecutive naturals, for example, 521266 + ... + 521365.

It is an arithmetic number, because the mean of its divisors is an integer number (8080398).

Almost surely, 2^52131550 is an apocalyptic number.

52131550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52131550 is a deficient number, since it is larger than the sum of its proper divisors (44833226).

52131550 is a wasteful number, since it uses less digits than its factorization.

52131550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042643 (or 1042638 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 52131550 is about 7220.2181407489. The cubic root of 52131550 is about 373.5656018153.

Adding to 52131550 its reverse (5513125), we get a palindrome (57644675).

The spelling of 52131550 in words is "fifty-two million, one hundred thirty-one thousand, five hundred fifty".