49771285253 has 8 divisors (see below), whose sum is σ = 50146393080. Its totient is φ = 49397549760.

The previous prime is 49771285247. The next prime is 49771285279. The reversal of 49771285253 is 35258217794.

It can be written as a sum of positive squares in 4 ways, for example, as 7491169 + 49763794084 = 2737^2 + 223078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49771285253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49771285195 and 49771285204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49771285243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270218 + ... + 415403.

It is an arithmetic number, because the mean of its divisors is an integer number (6268299135).

Almost surely, 2^49771285253 is an apocalyptic number.

It is an amenable number.

49771285253 is a deficient number, since it is larger than the sum of its proper divisors (375107827).

49771285253 is a wasteful number, since it uses less digits than its factorization.

49771285253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686167.

The product of its digits is 4233600, while the sum is 53.

The spelling of 49771285253 in words is "forty-nine billion, seven hundred seventy-one million, two hundred eighty-five thousand, two hundred fifty-three".