52991466 has 48 divisors (see below), whose sum is σ = 119048832. Its totient is φ = 15706240.

The previous prime is 52991461. The next prime is 52991483. The reversal of 52991466 is 66419925.

It is a happy number.

52991466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52991461) 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 23 ways as a sum of consecutive naturals, for example, 33346 + ... + 34898.

It is an arithmetic number, because the mean of its divisors is an integer number (2480184).

Almost surely, 2^52991466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52991466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59524416).

52991466 is an abundant number, since it is smaller than the sum of its proper divisors (66057366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52991466 is a wasteful number, since it uses less digits than its factorization.

52991466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1616 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 52991466 is about 7279.5237481583. The cubic root of 52991466 is about 375.6084132439.

The spelling of 52991466 in words is "fifty-two million, nine hundred ninety-one thousand, four hundred sixty-six".