42235611251 has 2 divisors, whose sum is σ = 42235611252. Its totient is φ = 42235611250.

The previous prime is 42235611247. The next prime is 42235611277. The reversal of 42235611251 is 15211653224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42235611251 - 2² = 42235611247 is a prime.

It is not a weakly prime, because it can be changed into another prime (42235611751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117805625 + 21117805626.

It is an arithmetic number, because the mean of its divisors is an integer number (21117805626).

Almost surely, 2^42235611251 is an apocalyptic number.

42235611251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42235611251 is an equidigital number, since it uses as much as digits as its factorization.

42235611251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The spelling of 42235611251 in words is "forty-two billion, two hundred thirty-five million, six hundred eleven thousand, two hundred fifty-one".