2251049551 has 2 divisors, whose sum is σ = 2251049552. Its totient is φ = 2251049550.

The previous prime is 2251049417. The next prime is 2251049569. The reversal of 2251049551 is 1559401522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2251049551 - 2⁹ = 2251049039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251040551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125524775 + 1125524776.

It is an arithmetic number, because the mean of its divisors is an integer number (1125524776).

Almost surely, 2^2251049551 is an apocalyptic number.

2251049551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251049551 is an equidigital number, since it uses as much as digits as its factorization.

2251049551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 2251049551 is about 47445.2268516023. The cubic root of 2251049551 is about 1310.5744137099.

The spelling of 2251049551 in words is "two billion, two hundred fifty-one million, forty-nine thousand, five hundred fifty-one".