52431550 has 24 divisors (see below), whose sum is σ = 98036136. Its totient is φ = 20862240.

The previous prime is 52431541. The next prime is 52431557. The reversal of 52431550 is 5513425.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52431557) 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 11 ways as a sum of consecutive naturals, for example, 7189 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (4084839).

Almost surely, 2^52431550 is an apocalyptic number.

52431550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52431550 is a deficient number, since it is larger than the sum of its proper divisors (45604586).

52431550 is a wasteful number, since it uses less digits than its factorization.

52431550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532 (or 5527 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 52431550 is about 7240.9633337008. The cubic root of 52431550 is about 374.2808141991.

Adding to 52431550 its reverse (5513425), we get a palindrome (57944975).

The spelling of 52431550 in words is "fifty-two million, four hundred thirty-one thousand, five hundred fifty".