42452025491 has 2 divisors, whose sum is σ = 42452025492. Its totient is φ = 42452025490.

The previous prime is 42452025419. The next prime is 42452025493. The reversal of 42452025491 is 19452025424.

It is a happy number.

Together with previous prime (42452025419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42452025491 - 2³⁴ = 25272156307 is a prime.

It is a Sophie Germain prime.

Together with 42452025493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42452025493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226012745 + 21226012746.

It is an arithmetic number, because the mean of its divisors is an integer number (21226012746).

Almost surely, 2^42452025491 is an apocalyptic number.

42452025491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42452025491 is an equidigital number, since it uses as much as digits as its factorization.

42452025491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 42452025491 in words is "forty-two billion, four hundred fifty-two million, twenty-five thousand, four hundred ninety-one".