52232421 has 4 divisors (see below), whose sum is σ = 69643232. Its totient is φ = 34821612.

The previous prime is 52232413. The next prime is 52232431. The reversal of 52232421 is 12423225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52232421 - 2³ = 52232413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52232431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8705401 + ... + 8705406.

It is an arithmetic number, because the mean of its divisors is an integer number (17410808).

Almost surely, 2^52232421 is an apocalyptic number.

It is an amenable number.

52232421 is a deficient number, since it is larger than the sum of its proper divisors (17410811).

52232421 is a wasteful number, since it uses less digits than its factorization.

52232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17410810.

The product of its digits is 960, while the sum is 21.

The square root of 52232421 is about 7227.2000802524. The cubic root of 52232421 is about 373.8063879159.

Adding to 52232421 its reverse (12423225), we get a palindrome (64655646).

The spelling of 52232421 in words is "fifty-two million, two hundred thirty-two thousand, four hundred twenty-one".