42001505 has 16 divisors (see below), whose sum is σ = 62033664. Its totient is φ = 26585280.

The previous prime is 42001501. The next prime is 42001511. The reversal of 42001505 is 50510024.

It is not a de Polignac number, because 42001505 - 2² = 42001501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42001501) 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, 45701 + ... + 46610.

It is an arithmetic number, because the mean of its divisors is an integer number (3877104).

Almost surely, 2^42001505 is an apocalyptic number.

It is an amenable number.

42001505 is a deficient number, since it is larger than the sum of its proper divisors (20032159).

42001505 is a wasteful number, since it uses less digits than its factorization.

42001505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92336.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 42001505 is about 6480.8568106385. The cubic root of 42001505 is about 347.6068163598.

Adding to 42001505 its reverse (50510024), we get a palindrome (92511529).

The spelling of 42001505 in words is "forty-two million, one thousand, five hundred five".