52180749 has 12 divisors (see below), whose sum is σ = 75469212. Its totient is φ = 34742400.

The previous prime is 52180729. The next prime is 52180753. The reversal of 52180749 is 94708125.

52180749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10771524 + 41409225 = 3282^2 + 6435^2 .

It is not a de Polignac number, because 52180749 - 2⁸ = 52180493 is a prime.

It is a super-3 number, since 3×52180749³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52180729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4639 + ... + 11219.

It is an arithmetic number, because the mean of its divisors is an integer number (6289101).

Almost surely, 2^52180749 is an apocalyptic number.

It is an amenable number.

52180749 is a deficient number, since it is larger than the sum of its proper divisors (23288463).

52180749 is a wasteful number, since it uses less digits than its factorization.

52180749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52180749 is about 7223.6243673104. The cubic root of 52180749 is about 373.6830820191.

The spelling of 52180749 in words is "fifty-two million, one hundred eighty thousand, seven hundred forty-nine".