52991356 has 24 divisors (see below), whose sum is σ = 105565824. Its totient is φ = 23039280.

The previous prime is 52991353. The next prime is 52991359. The reversal of 52991356 is 65319925.

It is a happy number.

52991356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52991353) and next prime (52991359).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52991353) 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 7 ways as a sum of consecutive naturals, for example, 25170 + ... + 27193.

It is an arithmetic number, because the mean of its divisors is an integer number (4398576).

Almost surely, 2^52991356 is an apocalyptic number.

It is an amenable number.

52991356 is a deficient number, since it is larger than the sum of its proper divisors (52574468).

52991356 is a wasteful number, since it uses less digits than its factorization.

52991356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52401 (or 52399 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 52991356 is about 7279.5161927150. The cubic root of 52991356 is about 375.6081533470.

The spelling of 52991356 in words is "fifty-two million, nine hundred ninety-one thousand, three hundred fifty-six".