42122275 has 12 divisors (see below), whose sum is σ = 56249872. Its totient is φ = 31105440.

The previous prime is 42122257. The next prime is 42122281. The reversal of 42122275 is 57222124.

It is not a de Polignac number, because 42122275 - 2¹⁵ = 42089507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 64479 + ... + 65128.

Almost surely, 2^42122275 is an apocalyptic number.

42122275 is a deficient number, since it is larger than the sum of its proper divisors (14127597).

42122275 is a wasteful number, since it uses less digits than its factorization.

42122275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129630 (or 129625 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 42122275 is about 6490.1675633222. The cubic root of 42122275 is about 347.9396639792.

Adding to 42122275 its reverse (57222124), we get a palindrome (99344399).

The spelling of 42122275 in words is "forty-two million, one hundred twenty-two thousand, two hundred seventy-five".