48449225515681 has 2 divisors, whose sum is σ = 48449225515682. Its totient is φ = 48449225515680.

The previous prime is 48449225515571. The next prime is 48449225515739. The reversal of 48449225515681 is 18651552294484.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47867233518225 + 581991997456 = 6918615^2 + 762884^2 .

It is a cyclic number.

It is not a de Polignac number, because 48449225515681 - 2³¹ = 48447078032033 is a prime.

It is a super-2 number, since 2×48449225515681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48449225515181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24224612757840 + 24224612757841.

It is an arithmetic number, because the mean of its divisors is an integer number (24224612757841).

Almost surely, 2^{48449225515681} is an apocalyptic number.

It is an amenable number.

48449225515681 is a deficient number, since it is larger than the sum of its proper divisors (1).

48449225515681 is an equidigital number, since it uses as much as digits as its factorization.

48449225515681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592000, while the sum is 64.

The spelling of 48449225515681 in words is "forty-eight trillion, four hundred forty-nine billion, two hundred twenty-five million, five hundred fifteen thousand, six hundred eighty-one".