48218661 has 6 divisors (see below), whose sum is σ = 69649190. Its totient is φ = 32145768.

The previous prime is 48218641. The next prime is 48218669. The reversal of 48218661 is 16681284.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 3261636 = 6705^2 + 1806^2 .

It is not a de Polignac number, because 48218661 - 2²³ = 39830053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48218669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2678806 + ... + 2678823.

Almost surely, 2^48218661 is an apocalyptic number.

It is an amenable number.

48218661 is a deficient number, since it is larger than the sum of its proper divisors (21430529).

48218661 is a wasteful number, since it uses less digits than its factorization.

48218661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357635 (or 5357632 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 48218661 is about 6943.9657977268. The cubic root of 48218661 is about 363.9751346578.

The spelling of 48218661 in words is "forty-eight million, two hundred eighteen thousand, six hundred sixty-one".