42243251055 has 16 divisors (see below), whose sum is σ = 67858487424. Its totient is φ = 22439972000.

The previous prime is 42243251009. The next prime is 42243251081. The reversal of 42243251055 is 55015234224.

It is a happy number.

It is not a de Polignac number, because 42243251055 - 2¹² = 42243246959 is a prime.

It is a super-2 number, since 2×42243251055² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 5606229 + ... + 5613758.

It is an arithmetic number, because the mean of its divisors is an integer number (4241155464).

Almost surely, 2^42243251055 is an apocalyptic number.

42243251055 is a deficient number, since it is larger than the sum of its proper divisors (25615236369).

42243251055 is a wasteful number, since it uses less digits than its factorization.

42243251055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220246.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 42243251055 its reverse (55015234224), we get a palindrome (97258485279).

The spelling of 42243251055 in words is "forty-two billion, two hundred forty-three million, two hundred fifty-one thousand, fifty-five".