52612421 has 2 divisors, whose sum is σ = 52612422. Its totient is φ = 52612420.

The previous prime is 52612397. The next prime is 52612423. The reversal of 52612421 is 12421625.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 12859396 = 6305^2 + 3586^2 .

It is a cyclic number.

It is not a de Polignac number, because 52612421 - 2¹⁰ = 52611397 is a prime.

Together with 52612423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52612423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26306210 + 26306211.

It is an arithmetic number, because the mean of its divisors is an integer number (26306211).

Almost surely, 2^52612421 is an apocalyptic number.

It is an amenable number.

52612421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52612421 is an equidigital number, since it uses as much as digits as its factorization.

52612421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 52612421 is about 7253.4420105216. The cubic root of 52612421 is about 374.7107007251.

The spelling of 52612421 in words is "fifty-two million, six hundred twelve thousand, four hundred twenty-one".