42252629 has 2 divisors, whose sum is σ = 42252630. Its totient is φ = 42252628.

The previous prime is 42252611. The next prime is 42252649. The reversal of 42252629 is 92625224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36602500 + 5650129 = 6050^2 + 2377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42252629 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42252595 and 42252604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42252649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126314 + 21126315.

It is an arithmetic number, because the mean of its divisors is an integer number (21126315).

Almost surely, 2^42252629 is an apocalyptic number.

It is an amenable number.

42252629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42252629 is an equidigital number, since it uses as much as digits as its factorization.

42252629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 42252629 is about 6500.2022276234. The cubic root of 42252629 is about 348.2982123627.

The spelling of 42252629 in words is "forty-two million, two hundred fifty-two thousand, six hundred twenty-nine".