63530541 has 16 divisors (see below), whose sum is σ = 94987200. Its totient is φ = 41963184.

The previous prime is 63530507. The next prime is 63530567. The reversal of 63530541 is 14503536.

It is not a de Polignac number, because 63530541 - 2⁶ = 63530477 is a prime.

It is a super-2 number, since 2×63530541² = 8072259279505362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63531541) 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, 7851 + ... + 13736.

It is an arithmetic number, because the mean of its divisors is an integer number (5936700).

Almost surely, 2^63530541 is an apocalyptic number.

It is an amenable number.

63530541 is a deficient number, since it is larger than the sum of its proper divisors (31456659).

63530541 is a wasteful number, since it uses less digits than its factorization.

63530541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21705 (or 21699 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 63530541 is about 7970.6048076667. The cubic root of 63530541 is about 399.0195592198.

The spelling of 63530541 in words is "sixty-three million, five hundred thirty thousand, five hundred forty-one".