63454553 has 2 divisors, whose sum is σ = 63454554. Its totient is φ = 63454552.

The previous prime is 63454537. The next prime is 63454571. The reversal of 63454553 is 35545436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55547209 + 7907344 = 7453^2 + 2812^2 .

It is a cyclic number.

It is not a de Polignac number, because 63454553 - 2⁴ = 63454537 is a prime.

It is not a weakly prime, because it can be changed into another prime (63454253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31727276 + 31727277.

It is an arithmetic number, because the mean of its divisors is an integer number (31727277).

Almost surely, 2^63454553 is an apocalyptic number.

It is an amenable number.

63454553 is a deficient number, since it is larger than the sum of its proper divisors (1).

63454553 is an equidigital number, since it uses as much as digits as its factorization.

63454553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 35.

The square root of 63454553 is about 7965.8366164515. The cubic root of 63454553 is about 398.8604084946.

Adding to 63454553 its reverse (35545436), we get a palindrome (98999989).

The spelling of 63454553 in words is "sixty-three million, four hundred fifty-four thousand, five hundred fifty-three".