42425015 has 4 divisors (see below), whose sum is σ = 50910024. Its totient is φ = 33940008.

The previous prime is 42424981. The next prime is 42425021. The reversal of 42425015 is 51052424.

It is a happy number.

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 42425015 - 2¹⁴ = 42408631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242497 + ... + 4242506.

It is an arithmetic number, because the mean of its divisors is an integer number (12727506).

Almost surely, 2^42425015 is an apocalyptic number.

42425015 is a deficient number, since it is larger than the sum of its proper divisors (8485009).

42425015 is an equidigital number, since it uses as much as digits as its factorization.

42425015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485008.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42425015 is about 6513.4487792567. The cubic root of 42425015 is about 348.7712422239.

Adding to 42425015 its reverse (51052424), we get a palindrome (93477439).

The spelling of 42425015 in words is "forty-two million, four hundred twenty-five thousand, fifteen".