42505052 has 12 divisors (see below), whose sum is σ = 78298920. Its totient is φ = 20133936.

The previous prime is 42505051. The next prime is 42505103. The reversal of 42505052 is 25050524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42505051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279563 + ... + 279714.

It is an arithmetic number, because the mean of its divisors is an integer number (6524910).

Almost surely, 2^42505052 is an apocalyptic number.

It is an amenable number.

42505052 is a deficient number, since it is larger than the sum of its proper divisors (35793868).

42505052 is a wasteful number, since it uses less digits than its factorization.

42505052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559300 (or 559298 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 42505052 is about 6519.5898644010. The cubic root of 42505052 is about 348.9904294822.

Adding to 42505052 its reverse (25050524), we get a palindrome (67555576).

The spelling of 42505052 in words is "forty-two million, five hundred five thousand, fifty-two".