1002622655 has 16 divisors (see below), whose sum is σ = 1245646080. Its totient is φ = 773810688.

The previous prime is 1002622631. The next prime is 1002622669. The reversal of 1002622655 is 5562262001.

It is a cyclic number.

It is not a de Polignac number, because 1002622655 - 2⁶ = 1002622591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262439 + ... + 266231.

It is an arithmetic number, because the mean of its divisors is an integer number (77852880).

Almost surely, 2^1002622655 is an apocalyptic number.

1002622655 is a deficient number, since it is larger than the sum of its proper divisors (243023425).

1002622655 is a wasteful number, since it uses less digits than its factorization.

1002622655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1002622655 is about 31664.2172649191. The cubic root of 1002622655 is about 1000.8734551872.

Adding to 1002622655 its reverse (5562262001), we get a palindrome (6564884656).

The spelling of 1002622655 in words is "one billion, two million, six hundred twenty-two thousand, six hundred fifty-five".