2086512251 has 4 divisors (see below), whose sum is σ = 2142904512. Its totient is φ = 2030119992.

The previous prime is 2086512193. The next prime is 2086512293. The reversal of 2086512251 is 1522156802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1522156802 = 2 ⋅761078401.

It is a cyclic number.

It is not a de Polignac number, because 2086512251 - 2¹⁸ = 2086250107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086512751) 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, 28196075 + ... + 28196148.

It is an arithmetic number, because the mean of its divisors is an integer number (535726128).

Almost surely, 2^2086512251 is an apocalyptic number.

2086512251 is a deficient number, since it is larger than the sum of its proper divisors (56392261).

2086512251 is an equidigital number, since it uses as much as digits as its factorization.

2086512251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56392260.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 2086512251 is about 45678.3564831310. The cubic root of 2086512251 is about 1277.8316664185.

The spelling of 2086512251 in words is "two billion, eighty-six million, five hundred twelve thousand, two hundred fifty-one".