2251531351 has 2 divisors, whose sum is σ = 2251531352. Its totient is φ = 2251531350.

The previous prime is 2251531349. The next prime is 2251531367. The reversal of 2251531351 is 1531351522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2251531351 - 2¹ = 2251531349 is a prime.

Together with 2251531349, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251531151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125765675 + 1125765676.

It is an arithmetic number, because the mean of its divisors is an integer number (1125765676).

Almost surely, 2^2251531351 is an apocalyptic number.

2251531351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251531351 is an equidigital number, since it uses as much as digits as its factorization.

2251531351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 2251531351 is about 47450.3040137785. The cubic root of 2251531351 is about 1310.6679093133.

Adding to 2251531351 its reverse (1531351522), we get a palindrome (3782882873).

The spelling of 2251531351 in words is "two billion, two hundred fifty-one million, five hundred thirty-one thousand, three hundred fifty-one".