48636661 has 2 divisors, whose sum is σ = 48636662. Its totient is φ = 48636660.

The previous prime is 48636659. The next prime is 48636671. The reversal of 48636661 is 16663684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 22982436 = 5065^2 + 4794^2 .

It is a cyclic number.

It is not a de Polignac number, because 48636661 - 2¹ = 48636659 is a prime.

Together with 48636659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48636671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24318330 + 24318331.

It is an arithmetic number, because the mean of its divisors is an integer number (24318331).

Almost surely, 2^48636661 is an apocalyptic number.

It is an amenable number.

48636661 is a deficient number, since it is larger than the sum of its proper divisors (1).

48636661 is an equidigital number, since it uses as much as digits as its factorization.

48636661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 48636661 is about 6973.9989245769. The cubic root of 48636661 is about 365.0238578263.

The spelling of 48636661 in words is "forty-eight million, six hundred thirty-six thousand, six hundred sixty-one".