2140550551 has 4 divisors (see below), whose sum is σ = 2141551552. Its totient is φ = 2139549552.

The previous prime is 2140550549. The next prime is 2140550593. The reversal of 2140550551 is 1550550412.

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 2140550551 - 2¹ = 2140550549 is a prime.

It is a super-2 number, since 2×2140550551² = 9163913322772807202, 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 (2140550501) 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, 497286 + ... + 501571.

It is an arithmetic number, because the mean of its divisors is an integer number (535387888).

Almost surely, 2^2140550551 is an apocalyptic number.

2140550551 is a deficient number, since it is larger than the sum of its proper divisors (1001001).

2140550551 is an equidigital number, since it uses as much as digits as its factorization.

2140550551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001000.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2140550551 is about 46266.0842410507. The cubic root of 2140550551 is about 1288.7692427799.

The spelling of 2140550551 in words is "two billion, one hundred forty million, five hundred fifty thousand, five hundred fifty-one".