63548705531 has 8 divisors (see below), whose sum is σ = 66315055104. Its totient is φ = 60782636200.

The previous prime is 63548705491. The next prime is 63548705543. The reversal of 63548705531 is 13550784536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63548705531 - 2¹⁴ = 63548689147 is a prime.

It is a super-2 number, since 2×63548705531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63548702531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488006 + ... + 604356.

It is an arithmetic number, because the mean of its divisors is an integer number (8289381888).

Almost surely, 2^63548705531 is an apocalyptic number.

63548705531 is a deficient number, since it is larger than the sum of its proper divisors (2766349573).

63548705531 is a wasteful number, since it uses less digits than its factorization.

63548705531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140121.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 63548705531 in words is "sixty-three billion, five hundred forty-eight million, seven hundred five thousand, five hundred thirty-one".