1001055655 has 8 divisors (see below), whose sum is σ = 1221627600. Its totient is φ = 787270656.

The previous prime is 1001055637. The next prime is 1001055691. The reversal of 1001055655 is 5565501001.

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 1001055655 - 2⁵ = 1001055623 is a prime.

It is a super-2 number, since 2×1001055655² = 2004224848814958050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696410 + ... + 1696999.

It is an arithmetic number, because the mean of its divisors is an integer number (152703450).

Almost surely, 2^1001055655 is an apocalyptic number.

1001055655 is a deficient number, since it is larger than the sum of its proper divisors (220571945).

1001055655 is an equidigital number, since it uses as much as digits as its factorization.

1001055655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393473.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1001055655 is about 31639.4635700418. The cubic root of 1001055655 is about 1000.3517612495.

Adding to 1001055655 its reverse (5565501001), we get a palindrome (6566556656).

The spelling of 1001055655 in words is "one billion, one million, fifty-five thousand, six hundred fifty-five".