42253087477 has 2 divisors, whose sum is σ = 42253087478. Its totient is φ = 42253087476.

The previous prime is 42253087403. The next prime is 42253087517. The reversal of 42253087477 is 77478035224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38819244676 + 3433842801 = 197026^2 + 58599^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253087477 - 2³⁵ = 7893349109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42253087477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42253087777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126543738 + 21126543739.

It is an arithmetic number, because the mean of its divisors is an integer number (21126543739).

Almost surely, 2^42253087477 is an apocalyptic number.

It is an amenable number.

42253087477 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253087477 is an equidigital number, since it uses as much as digits as its factorization.

42253087477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 42253087477 in words is "forty-two billion, two hundred fifty-three million, eighty-seven thousand, four hundred seventy-seven".