42515205 has 8 divisors (see below), whose sum is σ = 68024352. Its totient is φ = 22674768.

The previous prime is 42515191. The next prime is 42515219. The reversal of 42515205 is 50251524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42515191) and next prime (42515219).

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

It is not a de Polignac number, because 42515205 - 2¹⁰ = 42514181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1417159 + ... + 1417188.

It is an arithmetic number, because the mean of its divisors is an integer number (8503044).

Almost surely, 2^42515205 is an apocalyptic number.

It is an amenable number.

42515205 is a deficient number, since it is larger than the sum of its proper divisors (25509147).

42515205 is a wasteful number, since it uses less digits than its factorization.

42515205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834355.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 42515205 is about 6520.3684711832. The cubic root of 42515205 is about 349.0182145539.

Adding to 42515205 its reverse (50251524), we get a palindrome (92766729).

The spelling of 42515205 in words is "forty-two million, five hundred fifteen thousand, two hundred five".