1055011001 has 8 divisors (see below), whose sum is σ = 1153740000. Its totient is φ = 956751840.

The previous prime is 1055010949. The next prime is 1055011019. The reversal of 1055011001 is 1001105501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055011001 - 2⁶ = 1055010937 is a prime.

It is a super-2 number, since 2×1055011001² = 2226096424462044002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055011031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112751 + ... + 121748.

It is an arithmetic number, because the mean of its divisors is an integer number (144217500).

Almost surely, 2^1055011001 is an apocalyptic number.

1055011001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1055011001 is a deficient number, since it is larger than the sum of its proper divisors (98728999).

1055011001 is a wasteful number, since it uses less digits than its factorization.

1055011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234919.

The product of its (nonzero) digits is 25, while the sum is 14.

The square root of 1055011001 is about 32480.9328837704. The cubic root of 1055011001 is about 1018.0106686880.

Adding to 1055011001 its reverse (1001105501), we get a palindrome (2056116502).

It can be divided in two parts, 105501 and 1001, that multiplied together give a palindrome (105606501).

The spelling of 1055011001 in words is "one billion, fifty-five million, eleven thousand, one".