52291668 has 96 divisors (see below), whose sum is σ = 148119552. Its totient is φ = 14140800.

The previous prime is 52291651. The next prime is 52291697. The reversal of 52291668 is 86619225.

52291668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 52705 + ... + 53687.

It is an arithmetic number, because the mean of its divisors is an integer number (1542912).

Almost surely, 2^52291668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52291668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74059776).

52291668 is an abundant number, since it is smaller than the sum of its proper divisors (95827884).

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

52291668 is a wasteful number, since it uses less digits than its factorization.

52291668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 52291668 is about 7231.2978088307. The cubic root of 52291668 is about 373.9476701451.

The spelling of 52291668 in words is "fifty-two million, two hundred ninety-one thousand, six hundred sixty-eight".