42150505 has 8 divisors (see below), whose sum is σ = 50646600. Its totient is φ = 33676416.

The previous prime is 42150503. The next prime is 42150509. The reversal of 42150505 is 50505124.

It can be written as a sum of positive squares in 4 ways, for example, as 14356521 + 27793984 = 3789^2 + 5272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42150505 - 2¹ = 42150503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42150503) 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 7 ways as a sum of consecutive naturals, for example, 940 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (6330825).

Almost surely, 2^42150505 is an apocalyptic number.

It is an amenable number.

42150505 is a deficient number, since it is larger than the sum of its proper divisors (8496095).

42150505 is a wasteful number, since it uses less digits than its factorization.

42150505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11003.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 42150505 is about 6492.3420273427. The cubic root of 42150505 is about 348.0173753821.

Adding to 42150505 its reverse (50505124), we get a palindrome (92655629).

The spelling of 42150505 in words is "forty-two million, one hundred fifty thousand, five hundred five".