4257681551 has 2 divisors, whose sum is σ = 4257681552. Its totient is φ = 4257681550.

The previous prime is 4257681541. The next prime is 4257681553. The reversal of 4257681551 is 1551867524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4257681551 is a prime.

Together with 4257681553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4257681553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128840775 + 2128840776.

It is an arithmetic number, because the mean of its divisors is an integer number (2128840776).

Almost surely, 2^4257681551 is an apocalyptic number.

4257681551 is a deficient number, since it is larger than the sum of its proper divisors (1).

4257681551 is an equidigital number, since it uses as much as digits as its factorization.

4257681551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 44.

The square root of 4257681551 is about 65250.9122618221. The cubic root of 4257681551 is about 1620.7812051713.

The spelling of 4257681551 in words is "four billion, two hundred fifty-seven million, six hundred eighty-one thousand, five hundred fifty-one".