42555427423 has 2 divisors, whose sum is σ = 42555427424. Its totient is φ = 42555427422.

The previous prime is 42555427363. The next prime is 42555427427. The reversal of 42555427423 is 32472455524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42555427423 - 2⁹ = 42555426911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42555427423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42555427427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277713711 + 21277713712.

It is an arithmetic number, because the mean of its divisors is an integer number (21277713712).

Almost surely, 2^42555427423 is an apocalyptic number.

42555427423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42555427423 is an equidigital number, since it uses as much as digits as its factorization.

42555427423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344000, while the sum is 43.

The spelling of 42555427423 in words is "forty-two billion, five hundred fifty-five million, four hundred twenty-seven thousand, four hundred twenty-three".