1001055005051 has 4 divisors (see below), whose sum is σ = 1053742110600. Its totient is φ = 948367899504.

The previous prime is 1001055005033. The next prime is 1001055005057. The reversal of 1001055005051 is 1505005501001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001055005051 is a prime.

It is a super-2 number, since 2×1001055005051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001055005057) 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, 26343552746 + ... + 26343552783.

It is an arithmetic number, because the mean of its divisors is an integer number (263435527650).

Almost surely, 2^{1001055005051} is an apocalyptic number.

1001055005051 is a deficient number, since it is larger than the sum of its proper divisors (52687105549).

1001055005051 is an equidigital number, since it uses as much as digits as its factorization.

1001055005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52687105548.

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 1001055005051 in words is "one trillion, one billion, fifty-five million, five thousand, fifty-one".