63085403531 has 4 divisors (see below), whose sum is σ = 63190722000. Its totient is φ = 62980085064.

The previous prime is 63085403477. The next prime is 63085403573. The reversal of 63085403531 is 13530458036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63085403531 - 2²⁶ = 63018294667 is a prime.

It is a super-2 number, since 2×63085403531² (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 (63085403831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52658336 + ... + 52659533.

It is an arithmetic number, because the mean of its divisors is an integer number (15797680500).

Almost surely, 2^63085403531 is an apocalyptic number.

63085403531 is a deficient number, since it is larger than the sum of its proper divisors (105318469).

63085403531 is a wasteful number, since it uses less digits than its factorization.

63085403531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105318468.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 63085403531 in words is "sixty-three billion, eighty-five million, four hundred three thousand, five hundred thirty-one".