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49976553181 is a prime number
BaseRepresentation
bin101110100010110101…
…011010111011011101
311202222221200221122011
4232202311122323131
51304322444200211
634543042551221
73416315456452
oct564265327335
9152887627564
1049976553181
111a216509115
129829068511
134935c50779
1425c1589829
1514777b2921
hexba2d5aedd

49976553181 has 2 divisors, whose sum is σ = 49976553182. Its totient is φ = 49976553180.

The previous prime is 49976553173. The next prime is 49976553197. The reversal of 49976553181 is 18135567994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47738317081 + 2238236100 = 218491^2 + 47310^2 .

It is a cyclic number.

It is not a de Polignac number, because 49976553181 - 23 = 49976553173 is a prime.

It is a super-2 number, since 2×499765531812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49976553281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988276590 + 24988276591.

It is an arithmetic number, because the mean of its divisors is an integer number (24988276591).

Almost surely, 249976553181 is an apocalyptic number.

It is an amenable number.

49976553181 is a deficient number, since it is larger than the sum of its proper divisors (1).

49976553181 is an equidigital number, since it uses as much as digits as its factorization.

49976553181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 58.

The spelling of 49976553181 in words is "forty-nine billion, nine hundred seventy-six million, five hundred fifty-three thousand, one hundred eighty-one".