1010550005551 has 4 divisors (see below), whose sum is σ = 1035197566704. Its totient is φ = 985902444400.

The previous prime is 1010550005537. The next prime is 1010550005557. The reversal of 1010550005551 is 1555000550101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010550005551 - 2¹¹ = 1010550003503 is a prime.

It is a super-2 number, since 2×1010550005551² (a number of 25 digits) 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 (1010550005557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12323780515 + ... + 12323780596.

It is an arithmetic number, because the mean of its divisors is an integer number (258799391676).

Almost surely, 2^{1010550005551} is an apocalyptic number.

1010550005551 is a deficient number, since it is larger than the sum of its proper divisors (24647561153).

1010550005551 is an equidigital number, since it uses as much as digits as its factorization.

1010550005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24647561152.

The product of its (nonzero) digits is 3125, while the sum is 28.

Adding to 1010550005551 its reverse (1555000550101), we get a palindrome (2565550555652).

The spelling of 1010550005551 in words is "one trillion, ten billion, five hundred fifty million, five thousand, five hundred fifty-one".