7420001255507 has 2 divisors, whose sum is σ = 7420001255508. Its totient is φ = 7420001255506.

The previous prime is 7420001255503. The next prime is 7420001255509. The reversal of 7420001255507 is 7055521000247.

It is a strong prime.

It is an emirp because it is prime and its reverse (7055521000247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7420001255507 - 2² = 7420001255503 is a prime.

Together with 7420001255509, 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 (7420001255503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710000627753 + 3710000627754.

It is an arithmetic number, because the mean of its divisors is an integer number (3710000627754).

Almost surely, 2^{7420001255507} is an apocalyptic number.

7420001255507 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420001255507 is an equidigital number, since it uses as much as digits as its factorization.

7420001255507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98000, while the sum is 38.

The spelling of 7420001255507 in words is "seven trillion, four hundred twenty billion, one million, two hundred fifty-five thousand, five hundred seven".