1010505655 has 8 divisors (see below), whose sum is σ = 1216433952. Its totient is φ = 805853088.

The previous prime is 1010505649. The next prime is 1010505659. The reversal of 1010505655 is 5565050101.

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 1010505655 - 2³ = 1010505647 is a prime.

It is a super-2 number, since 2×1010505655² = 2042243357573958050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010505659) by changing a digit.

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, 317187 + ... + 320356.

It is an arithmetic number, because the mean of its divisors is an integer number (152054244).

Almost surely, 2^1010505655 is an apocalyptic number.

1010505655 is a deficient number, since it is larger than the sum of its proper divisors (205928297).

1010505655 is an equidigital number, since it uses as much as digits as its factorization.

1010505655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637865.

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

The square root of 1010505655 is about 31788.4515980253. The cubic root of 1010505655 is about 1003.4896928778.

Adding to 1010505655 its reverse (5565050101), we get a palindrome (6575555756).

The spelling of 1010505655 in words is "one billion, ten million, five hundred five thousand, six hundred fifty-five".