63534403 has 4 divisors (see below), whose sum is σ = 63716800. Its totient is φ = 63352008.

The previous prime is 63534337. The next prime is 63534409. The reversal of 63534403 is 30443536.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63534403 - 2¹⁷ = 63403331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63534409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90675 + ... + 91372.

It is an arithmetic number, because the mean of its divisors is an integer number (15929200).

Almost surely, 2^63534403 is an apocalyptic number.

63534403 is a deficient number, since it is larger than the sum of its proper divisors (182397).

63534403 is a wasteful number, since it uses less digits than its factorization.

63534403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182396.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 63534403 is about 7970.8470691640. The cubic root of 63534403 is about 399.0276444771.

Adding to 63534403 its reverse (30443536), we get a palindrome (93977939).

The spelling of 63534403 in words is "sixty-three million, five hundred thirty-four thousand, four hundred three".