2551429 has 2 divisors, whose sum is σ = 2551430. Its totient is φ = 2551428.

The previous prime is 2551421. The next prime is 2551433. The reversal of 2551429 is 9241552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 39204 = 1585^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551429 - 2³ = 2551421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2551397 and 2551406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275714 + 1275715.

It is an arithmetic number, because the mean of its divisors is an integer number (1275715).

2^2551429 is an apocalyptic number.

It is an amenable number.

2551429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551429 is an equidigital number, since it uses as much as digits as its factorization.

2551429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 2551429 is about 1597.3193168556. The cubic root of 2551429 is about 136.6452362458.

The spelling of 2551429 in words is "two million, five hundred fifty-one thousand, four hundred twenty-nine".