42634511 has 2 divisors, whose sum is σ = 42634512. Its totient is φ = 42634510.

The previous prime is 42634489. The next prime is 42634513. The reversal of 42634511 is 11543624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42634511 - 2¹⁴ = 42618127 is a prime.

Together with 42634513, 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 (42634513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21317255 + 21317256.

It is an arithmetic number, because the mean of its divisors is an integer number (21317256).

Almost surely, 2^42634511 is an apocalyptic number.

42634511 is a deficient number, since it is larger than the sum of its proper divisors (1).

42634511 is an equidigital number, since it uses as much as digits as its factorization.

42634511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 42634511 is about 6529.5107779986. The cubic root of 42634511 is about 349.3443808258.

The spelling of 42634511 in words is "forty-two million, six hundred thirty-four thousand, five hundred eleven".