2551456403 has 2 divisors, whose sum is σ = 2551456404. Its totient is φ = 2551456402.

The previous prime is 2551456393. The next prime is 2551456423. The reversal of 2551456403 is 3046541552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551456403 - 2²⁶ = 2484347539 is a prime.

It is a super-3 number, since 3×2551456403³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2551456423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275728201 + 1275728202.

It is an arithmetic number, because the mean of its divisors is an integer number (1275728202).

Almost surely, 2^2551456403 is an apocalyptic number.

2551456403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551456403 is an equidigital number, since it uses as much as digits as its factorization.

2551456403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2551456403 is about 50511.9431718876. The cubic root of 2551456403 is about 1366.4572544561.

Adding to 2551456403 its reverse (3046541552), we get a palindrome (5597997955).

The spelling of 2551456403 in words is "two billion, five hundred fifty-one million, four hundred fifty-six thousand, four hundred three".