46531521 has 12 divisors (see below), whose sum is σ = 67381860. Its totient is φ = 30942720.

The previous prime is 46531493. The next prime is 46531531. The reversal of 46531521 is 12513564.

46531521 is a `hidden beast` number, since 4 + 653 + 1 + 5 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16719921 + 29811600 = 4089^2 + 5460^2 .

It is not a de Polignac number, because 46531521 - 2⁵ = 46531489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (46531531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2640 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (5615155).

Almost surely, 2^46531521 is an apocalyptic number.

It is an amenable number.

46531521 is a deficient number, since it is larger than the sum of its proper divisors (20850339).

46531521 is a wasteful number, since it uses less digits than its factorization.

46531521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13056 (or 13053 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 46531521 is about 6821.4016888027. The cubic root of 46531521 is about 359.6795528076.

The spelling of 46531521 in words is "forty-six million, five hundred thirty-one thousand, five hundred twenty-one".