1022042555 has 8 divisors (see below), whose sum is σ = 1227312000. Its totient is φ = 817060096.

The previous prime is 1022042507. The next prime is 1022042561. The reversal of 1022042555 is 5552402201.

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 1022042555 - 2⁶ = 1022042491 is a prime.

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, 63830 + ... + 78219.

It is an arithmetic number, because the mean of its divisors is an integer number (153414000).

Almost surely, 2^1022042555 is an apocalyptic number.

1022042555 is a deficient number, since it is larger than the sum of its proper divisors (205269445).

1022042555 is a wasteful number, since it uses less digits than its factorization.

1022042555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143493.

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

The square root of 1022042555 is about 31969.4002915288. The cubic root of 1022042555 is about 1007.2941838526.

Adding to 1022042555 its reverse (5552402201), we get a palindrome (6574444756).

The spelling of 1022042555 in words is "one billion, twenty-two million, forty-two thousand, five hundred fifty-five".