43650061 has 16 divisors (see below), whose sum is σ = 54256384. Its totient is φ = 34193664.

The previous prime is 43650059. The next prime is 43650073. The reversal of 43650061 is 16005634.

It is a cyclic number.

It is not a de Polignac number, because 43650061 - 2¹ = 43650059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43650091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7045 + ... + 11701.

It is an arithmetic number, because the mean of its divisors is an integer number (3391024).

Almost surely, 2^43650061 is an apocalyptic number.

It is an amenable number.

43650061 is a deficient number, since it is larger than the sum of its proper divisors (10606323).

43650061 is a wasteful number, since it uses less digits than its factorization.

43650061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 43650061 is about 6606.8192801075. The cubic root of 43650061 is about 352.0964272883.

Adding to 43650061 its reverse (16005634), we get a palindrome (59655695).

The spelling of 43650061 in words is "forty-three million, six hundred fifty thousand, sixty-one".