46009521 has 24 divisors (see below), whose sum is σ = 67882880. Its totient is φ = 30023136.

The previous prime is 46009519. The next prime is 46009541. The reversal of 46009521 is 12590064.

46009521 is a `hidden beast` number, since 4 + 600 + 9 + 52 + 1 = 666.

46009521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 46009521 - 2¹ = 46009519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46009541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115695 + ... + 116091.

Almost surely, 2^46009521 is an apocalyptic number.

It is an amenable number.

46009521 is a deficient number, since it is larger than the sum of its proper divisors (21873359).

46009521 is a wasteful number, since it uses less digits than its factorization.

46009521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 46009521 is about 6783.0318442419. The cubic root of 46009521 is about 358.3295058302.

Adding to 46009521 its reverse (12590064), we get a palindrome (58599585).

The spelling of 46009521 in words is "forty-six million, nine thousand, five hundred twenty-one".