42299651 has 2 divisors, whose sum is σ = 42299652. Its totient is φ = 42299650.

The previous prime is 42299627. The next prime is 42299687. The reversal of 42299651 is 15699224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42299651 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42299611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21149825 + 21149826.

It is an arithmetic number, because the mean of its divisors is an integer number (21149826).

Almost surely, 2^42299651 is an apocalyptic number.

42299651 is a deficient number, since it is larger than the sum of its proper divisors (1).

42299651 is an equidigital number, since it uses as much as digits as its factorization.

42299651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 42299651 is about 6503.8181862657. The cubic root of 42299651 is about 348.4273688770.

The spelling of 42299651 in words is "forty-two million, two hundred ninety-nine thousand, six hundred fifty-one".