49671717253 has 2 divisors, whose sum is σ = 49671717254. Its totient is φ = 49671717252.

The previous prime is 49671717239. The next prime is 49671717313. The reversal of 49671717253 is 35271717694.

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., 36839811969 + 12831905284 = 191937^2 + 113278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49671717253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49671717253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49671718253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24835858626 + 24835858627.

It is an arithmetic number, because the mean of its divisors is an integer number (24835858627).

Almost surely, 2^49671717253 is an apocalyptic number.

It is an amenable number.

49671717253 is a deficient number, since it is larger than the sum of its proper divisors (1).

49671717253 is an equidigital number, since it uses as much as digits as its factorization.

49671717253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 52.

The spelling of 49671717253 in words is "forty-nine billion, six hundred seventy-one million, seven hundred seventeen thousand, two hundred fifty-three".