2551240424429 has 2 divisors, whose sum is σ = 2551240424430. Its totient is φ = 2551240424428.

The previous prime is 2551240424351. The next prime is 2551240424443. The reversal of 2551240424429 is 9244240421552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2520784939204 + 30455485225 = 1587698^2 + 174515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551240424429 - 2¹⁶ = 2551240358893 is a prime.

It is a super-3 number, since 3×2551240424429³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2551240424429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551240424459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275620212214 + 1275620212215.

It is an arithmetic number, because the mean of its divisors is an integer number (1275620212215).

Almost surely, 2^{2551240424429} is an apocalyptic number.

It is an amenable number.

2551240424429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551240424429 is an equidigital number, since it uses as much as digits as its factorization.

2551240424429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 2551240424429 in words is "two trillion, five hundred fifty-one billion, two hundred forty million, four hundred twenty-four thousand, four hundred twenty-nine".