48901661 has 2 divisors, whose sum is σ = 48901662. Its totient is φ = 48901660.

The previous prime is 48901613. The next prime is 48901681. The reversal of 48901661 is 16610984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 20748025 = 5306^2 + 4555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48901661 is a prime.

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 (48901681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24450830 + 24450831.

It is an arithmetic number, because the mean of its divisors is an integer number (24450831).

Almost surely, 2^48901661 is an apocalyptic number.

It is an amenable number.

48901661 is a deficient number, since it is larger than the sum of its proper divisors (1).

48901661 is an equidigital number, since it uses as much as digits as its factorization.

48901661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 48901661 is about 6992.9722579172. The cubic root of 48901661 is about 365.6856094618.

The spelling of 48901661 in words is "forty-eight million, nine hundred one thousand, six hundred sixty-one".