6887388253 has 2 divisors, whose sum is σ = 6887388254. Its totient is φ = 6887388252.

The previous prime is 6887388197. The next prime is 6887388257. The reversal of 6887388253 is 3528837886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6886012324 + 1375929 = 82982^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 6887388253 - 2²⁵ = 6853833821 is a prime.

It is a super-2 number, since 2×6887388253² = 94872233895124784018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6887388257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3443694126 + 3443694127.

It is an arithmetic number, because the mean of its divisors is an integer number (3443694127).

Almost surely, 2^6887388253 is an apocalyptic number.

It is an amenable number.

6887388253 is a deficient number, since it is larger than the sum of its proper divisors (1).

6887388253 is an equidigital number, since it uses as much as digits as its factorization.

6887388253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 58.

The square root of 6887388253 is about 82990.2901127596. The cubic root of 6887388253 is about 1902.6176526374.

The spelling of 6887388253 in words is "six billion, eight hundred eighty-seven million, three hundred eighty-eight thousand, two hundred fifty-three".