42022555 has 8 divisors (see below), whose sum is σ = 53393472. Its totient is φ = 31640448.

The previous prime is 42022543. The next prime is 42022579. The reversal of 42022555 is 55522024.

It is a happy number.

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 42022555 - 2⁷ = 42022427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247107 + ... + 247276.

It is an arithmetic number, because the mean of its divisors is an integer number (6674184).

Almost surely, 2^42022555 is an apocalyptic number.

42022555 is a deficient number, since it is larger than the sum of its proper divisors (11370917).

42022555 is a wasteful number, since it uses less digits than its factorization.

42022555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494405.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 42022555 is about 6482.4806208735. The cubic root of 42022555 is about 347.6648769891.

Adding to 42022555 its reverse (55522024), we get a palindrome (97544579).

The spelling of 42022555 in words is "forty-two million, twenty-two thousand, five hundred fifty-five".