52373664 has 144 divisors (see below), whose sum is σ = 172815552. Its totient is φ = 14736384.

The previous prime is 52373641. The next prime is 52373683. The reversal of 52373664 is 46637325.

52373664 is a `hidden beast` number, since 523 + 73 + 6 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167172 + ... + 167484.

It is an arithmetic number, because the mean of its divisors is an integer number (1200108).

Almost surely, 2^52373664 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 52373664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86407776).

52373664 is an abundant number, since it is smaller than the sum of its proper divisors (120441888).

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

52373664 is a wasteful number, since it uses less digits than its factorization.

52373664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 408 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 52373664 is about 7236.9651097680. The cubic root of 52373664 is about 374.1430244061.

The spelling of 52373664 in words is "fifty-two million, three hundred seventy-three thousand, six hundred sixty-four".