52390672 has 20 divisors (see below), whose sum is σ = 101881996. Its totient is φ = 26098560.

The previous prime is 52390627. The next prime is 52390673. The reversal of 52390672 is 27609325.

It is a happy number.

52390672 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 8088336 + 44302336 = 2844^2 + 6656^2 .

It is a super-3 number, since 3×52390672³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (52390673) 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 3 ways as a sum of consecutive naturals, for example, 1479 + ... + 10342.

Almost surely, 2^52390672 is an apocalyptic number.

It is an amenable number.

52390672 is a deficient number, since it is larger than the sum of its proper divisors (49491324).

52390672 is a wasteful number, since it uses less digits than its factorization.

52390672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12106 (or 12100 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 52390672 is about 7238.1400925928. The cubic root of 52390672 is about 374.1835201780.

Adding to 52390672 its reverse (27609325), we get a palindrome (79999997).

The spelling of 52390672 in words is "fifty-two million, three hundred ninety thousand, six hundred seventy-two".