42220887953 has 2 divisors, whose sum is σ = 42220887954. Its totient is φ = 42220887952.

The previous prime is 42220887913. The next prime is 42220887967. The reversal of 42220887953 is 35978802224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21649296769 + 20571591184 = 147137^2 + 143428^2 .

It is a cyclic number.

It is not a de Polignac number, because 42220887953 - 2⁶ = 42220887889 is a prime.

It is not a weakly prime, because it can be changed into another prime (42220887913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110443976 + 21110443977.

It is an arithmetic number, because the mean of its divisors is an integer number (21110443977).

Almost surely, 2^42220887953 is an apocalyptic number.

It is an amenable number.

42220887953 is a deficient number, since it is larger than the sum of its proper divisors (1).

42220887953 is an equidigital number, since it uses as much as digits as its factorization.

42220887953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 42220887953 in words is "forty-two billion, two hundred twenty million, eight hundred eighty-seven thousand, nine hundred fifty-three".