52624321 has 2 divisors, whose sum is σ = 52624322. Its totient is φ = 52624320.

The previous prime is 52624307. The next prime is 52624331. The reversal of 52624321 is 12342625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 2143296 = 7105^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 52624321 - 2⁵ = 52624289 is a prime.

It is a super-2 number, since 2×52624321² = 5538638321422082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52624301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26312160 + 26312161.

It is an arithmetic number, because the mean of its divisors is an integer number (26312161).

Almost surely, 2^52624321 is an apocalyptic number.

It is an amenable number.

52624321 is a deficient number, since it is larger than the sum of its proper divisors (1).

52624321 is an equidigital number, since it uses as much as digits as its factorization.

52624321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 52624321 is about 7254.2622643519. The cubic root of 52624321 is about 374.7389495752.

Adding to 52624321 its reverse (12342625), we get a palindrome (64966946).

The spelling of 52624321 in words is "fifty-two million, six hundred twenty-four thousand, three hundred twenty-one".