47507561249 has 2 divisors, whose sum is σ = 47507561250. Its totient is φ = 47507561248.

The previous prime is 47507561239. The next prime is 47507561333. The reversal of 47507561249 is 94216570574.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47499151249 + 8410000 = 217943^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 47507561249 - 2¹⁶ = 47507495713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47507561197 and 47507561206.

It is not a weakly prime, because it can be changed into another prime (47507561239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23753780624 + 23753780625.

It is an arithmetic number, because the mean of its divisors is an integer number (23753780625).

Almost surely, 2^47507561249 is an apocalyptic number.

It is an amenable number.

47507561249 is a deficient number, since it is larger than the sum of its proper divisors (1).

47507561249 is an equidigital number, since it uses as much as digits as its factorization.

47507561249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 47507561249 in words is "forty-seven billion, five hundred seven million, five hundred sixty-one thousand, two hundred forty-nine".