63428553 has 6 divisors (see below), whose sum is σ = 91619034. Its totient is φ = 42285696.

The previous prime is 63428551. The next prime is 63428557. The reversal of 63428553 is 35582436.

It is a happy number.

63428553 is a `hidden beast` number, since 63 + 42 + 8 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35676729 + 27751824 = 5973^2 + 5268^2 .

It is not a de Polignac number, because 63428553 - 2¹ = 63428551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63428551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3523800 + ... + 3523817.

It is an arithmetic number, because the mean of its divisors is an integer number (15269839).

Almost surely, 2^63428553 is an apocalyptic number.

It is an amenable number.

63428553 is a deficient number, since it is larger than the sum of its proper divisors (28190481).

63428553 is a wasteful number, since it uses less digits than its factorization.

63428553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047623 (or 7047620 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 63428553 is about 7964.2044800470. The cubic root of 63428553 is about 398.8059244224.

The spelling of 63428553 in words is "sixty-three million, four hundred twenty-eight thousand, five hundred fifty-three".