2140555551 has 8 divisors (see below), whose sum is σ = 2883497904. Its totient is φ = 1412325120.

The previous prime is 2140555531. The next prime is 2140555591. The reversal of 2140555551 is 1555550412.

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

It is not a de Polignac number, because 2140555551 - 2²² = 2136361247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140555531) 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, 3677640 + ... + 3678221.

It is an arithmetic number, because the mean of its divisors is an integer number (360437238).

Almost surely, 2^2140555551 is an apocalyptic number.

2140555551 is a deficient number, since it is larger than the sum of its proper divisors (742942353).

2140555551 is an equidigital number, since it uses as much as digits as its factorization.

2140555551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355961.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 2140555551 is about 46266.1382762815. The cubic root of 2140555551 is about 1288.7702462353.

The spelling of 2140555551 in words is "two billion, one hundred forty million, five hundred fifty-five thousand, five hundred fifty-one".