42195509953 has 2 divisors, whose sum is σ = 42195509954. Its totient is φ = 42195509952.

The previous prime is 42195509921. The next prime is 42195509969. The reversal of 42195509953 is 35990559124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22238862129 + 19956647824 = 149127^2 + 141268^2 .

It is a cyclic number.

It is not a de Polignac number, because 42195509953 - 2⁵ = 42195509921 is a prime.

It is a super-2 number, since 2×42195509953² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42195509953.

It is not a weakly prime, because it can be changed into another prime (42195507953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21097754976 + 21097754977.

It is an arithmetic number, because the mean of its divisors is an integer number (21097754977).

Almost surely, 2^42195509953 is an apocalyptic number.

It is an amenable number.

42195509953 is a deficient number, since it is larger than the sum of its proper divisors (1).

42195509953 is an equidigital number, since it uses as much as digits as its factorization.

42195509953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 42195509953 in words is "forty-two billion, one hundred ninety-five million, five hundred nine thousand, nine hundred fifty-three".