63554355552 has 48 divisors (see below), whose sum is σ = 169977936240. Its totient is φ = 20785070592.

The previous prime is 63554355533. The next prime is 63554355559. The reversal of 63554355552 is 25555345536.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×63554355552³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63554355559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6240427 + ... + 6250602.

It is an arithmetic number, because the mean of its divisors is an integer number (3541207005).

Almost surely, 2^63554355552 is an apocalyptic number.

It is an amenable number.

63554355552 is an abundant number, since it is smaller than the sum of its proper divisors (106423580688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63554355552 is a wasteful number, since it uses less digits than its factorization.

63554355552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12491095 (or 12491087 counting only the distinct ones).

The product of its digits is 6750000, while the sum is 48.

The spelling of 63554355552 in words is "sixty-three billion, five hundred fifty-four million, three hundred fifty-five thousand, five hundred fifty-two".