63542560 has 96 divisors (see below), whose sum is σ = 161989632. Its totient is φ = 23485440.

The previous prime is 63542551. The next prime is 63542561. The reversal of 63542560 is 6524536.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63542561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113802 + ... + 114358.

It is an arithmetic number, because the mean of its divisors is an integer number (1687392).

Almost surely, 2^63542560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63542560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80994816).

63542560 is an abundant number, since it is smaller than the sum of its proper divisors (98447072).

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

63542560 is a wasteful number, since it uses less digits than its factorization.

63542560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 63542560 is about 7971.3587298528. The cubic root of 63542560 is about 399.0447204184.

The spelling of 63542560 in words is "sixty-three million, five hundred forty-two thousand, five hundred sixty".