42225515 has 8 divisors (see below), whose sum is σ = 50712480. Its totient is φ = 33752512.

The previous prime is 42225511. The next prime is 42225523. The reversal of 42225515 is 51552224.

42225515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42225515 - 2² = 42225511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42225511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5087 + ... + 10503.

It is an arithmetic number, because the mean of its divisors is an integer number (6339060).

Almost surely, 2^42225515 is an apocalyptic number.

42225515 is a deficient number, since it is larger than the sum of its proper divisors (8486965).

42225515 is a wasteful number, since it uses less digits than its factorization.

42225515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

The product of its digits is 4000, while the sum is 26.

The square root of 42225515 is about 6498.1162655034. The cubic root of 42225515 is about 348.2236940922.

Adding to 42225515 its reverse (51552224), we get a palindrome (93777739).

The spelling of 42225515 in words is "forty-two million, two hundred twenty-five thousand, five hundred fifteen".