52431764 has 72 divisors (see below), whose sum is σ = 118244448. Its totient is φ = 20112960.

The previous prime is 52431751. The next prime is 52431767. The reversal of 52431764 is 46713425.

It is a self number, because there is not a number n which added to its sum of digits gives 52431764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52431767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178802 + ... + 179094.

It is an arithmetic number, because the mean of its divisors is an integer number (1642284).

Almost surely, 2^52431764 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 52431764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59122224).

52431764 is an abundant number, since it is smaller than the sum of its proper divisors (65812684).

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

52431764 is a wasteful number, since it uses less digits than its factorization.

52431764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 396 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 52431764 is about 7240.9781107251. The cubic root of 52431764 is about 374.2813234089.

It can be divided in two parts, 5243 and 1764, that added together give a palindrome (7007).

The spelling of 52431764 in words is "fifty-two million, four hundred thirty-one thousand, seven hundred sixty-four".