42500050423 has 4 divisors (see below), whose sum is σ = 42722563968. Its totient is φ = 42277536880.

The previous prime is 42500050409. The next prime is 42500050427. The reversal of 42500050423 is 32405000524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42500050423 - 2¹³ = 42500042231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500050427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111256486 + ... + 111256867.

It is an arithmetic number, because the mean of its divisors is an integer number (10680640992).

Almost surely, 2^42500050423 is an apocalyptic number.

42500050423 is a deficient number, since it is larger than the sum of its proper divisors (222513545).

42500050423 is a wasteful number, since it uses less digits than its factorization.

42500050423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222513544.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 42500050423 its reverse (32405000524), we get a palindrome (74905050947).

The spelling of 42500050423 in words is "forty-two billion, five hundred million, fifty thousand, four hundred twenty-three".