2551463149 has 2 divisors, whose sum is σ = 2551463150. Its totient is φ = 2551463148.

The previous prime is 2551463143. The next prime is 2551463183. The reversal of 2551463149 is 9413641552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2086845124 + 464618025 = 45682^2 + 21555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551463149 - 2³ = 2551463141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551463141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275731574 + 1275731575.

It is an arithmetic number, because the mean of its divisors is an integer number (1275731575).

Almost surely, 2^2551463149 is an apocalyptic number.

It is an amenable number.

2551463149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551463149 is an equidigital number, since it uses as much as digits as its factorization.

2551463149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 2551463149 is about 50512.0099481302. The cubic root of 2551463149 is about 1366.4584587503.

The spelling of 2551463149 in words is "two billion, five hundred fifty-one million, four hundred sixty-three thousand, one hundred forty-nine".