52449069551 has 2 divisors, whose sum is σ = 52449069552. Its totient is φ = 52449069550.

The previous prime is 52449069469. The next prime is 52449069571. The reversal of 52449069551 is 15596094425.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52449069551 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52449069551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52449069571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26224534775 + 26224534776.

It is an arithmetic number, because the mean of its divisors is an integer number (26224534776).

Almost surely, 2^52449069551 is an apocalyptic number.

52449069551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52449069551 is an equidigital number, since it uses as much as digits as its factorization.

52449069551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 52449069551 in words is "fifty-two billion, four hundred forty-nine million, sixty-nine thousand, five hundred fifty-one".