48656981 has 2 divisors, whose sum is σ = 48656982. Its totient is φ = 48656980.

The previous prime is 48656977. The next prime is 48657013. The reversal of 48656981 is 18965684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39262756 + 9394225 = 6266^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 48656981 - 2² = 48656977 is a prime.

It is a super-2 number, since 2×48656981² = 4735003600068722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48656911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24328490 + 24328491.

It is an arithmetic number, because the mean of its divisors is an integer number (24328491).

Almost surely, 2^48656981 is an apocalyptic number.

It is an amenable number.

48656981 is a deficient number, since it is larger than the sum of its proper divisors (1).

48656981 is an equidigital number, since it uses as much as digits as its factorization.

48656981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The square root of 48656981 is about 6975.4556123597. The cubic root of 48656981 is about 365.0746854113.

The spelling of 48656981 in words is "forty-eight million, six hundred fifty-six thousand, nine hundred eighty-one".