42505200111 has 16 divisors (see below), whose sum is σ = 61900364160. Its totient is φ = 25729636320.

The previous prime is 42505200103. The next prime is 42505200121. The reversal of 42505200111 is 11100250524.

It is not a de Polignac number, because 42505200111 - 2³ = 42505200103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42505200121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749505 + ... + 804218.

It is an arithmetic number, because the mean of its divisors is an integer number (3868772760).

Almost surely, 2^42505200111 is an apocalyptic number.

42505200111 is a deficient number, since it is larger than the sum of its proper divisors (19395164049).

42505200111 is a wasteful number, since it uses less digits than its factorization.

42505200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554566.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 42505200111 its reverse (11100250524), we get a palindrome (53605450635).

The spelling of 42505200111 in words is "forty-two billion, five hundred five million, two hundred thousand, one hundred eleven".