2551203323551 has 2 divisors, whose sum is σ = 2551203323552. Its totient is φ = 2551203323550.

The previous prime is 2551203323531. The next prime is 2551203323573. The reversal of 2551203323551 is 1553233021552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551203323551 - 2¹⁷ = 2551203192479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2551203323551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551203323531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275601661775 + 1275601661776.

It is an arithmetic number, because the mean of its divisors is an integer number (1275601661776).

Almost surely, 2^{2551203323551} is an apocalyptic number.

2551203323551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551203323551 is an equidigital number, since it uses as much as digits as its factorization.

2551203323551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 2551203323551 in words is "two trillion, five hundred fifty-one billion, two hundred three million, three hundred twenty-three thousand, five hundred fifty-one".