63536121 has 24 divisors (see below), whose sum is σ = 101256480. Its totient is φ = 38068800.

The previous prime is 63536113. The next prime is 63536131. The reversal of 63536121 is 12163536.

63536121 is a `hidden beast` number, since 6 + 3 + 536 + 121 = 666.

It is not a de Polignac number, because 63536121 - 2³ = 63536113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63536131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5206 + ... + 12416.

It is an arithmetic number, because the mean of its divisors is an integer number (4219020).

Almost surely, 2^63536121 is an apocalyptic number.

It is an amenable number.

63536121 is a deficient number, since it is larger than the sum of its proper divisors (37720359).

63536121 is a wasteful number, since it uses less digits than its factorization.

63536121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317 (or 7314 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 63536121 is about 7970.9548361536. The cubic root of 63536121 is about 399.0312410761.

Adding to 63536121 its reverse (12163536), we get a palindrome (75699657).

The spelling of 63536121 in words is "sixty-three million, five hundred thirty-six thousand, one hundred twenty-one".