52331643 has 96 divisors (see below), whose sum is σ = 102412800. Its totient is φ = 25707456.

The previous prime is 52331611. The next prime is 52331651. The reversal of 52331643 is 34613325.

It is a happy number.

It is not a de Polignac number, because 52331643 - 2⁵ = 52331611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52331603) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 886948 + ... + 887006.

It is an arithmetic number, because the mean of its divisors is an integer number (1066800).

Almost surely, 2^52331643 is an apocalyptic number.

52331643 is a deficient number, since it is larger than the sum of its proper divisors (50081157).

52331643 is a wasteful number, since it uses less digits than its factorization.

52331643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 101 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 52331643 is about 7234.0613074538. The cubic root of 52331643 is about 374.0429354847.

Adding to 52331643 its reverse (34613325), we get a palindrome (86944968).

The spelling of 52331643 in words is "fifty-two million, three hundred thirty-one thousand, six hundred forty-three".