9225885643531 has 16 divisors (see below), whose sum is σ = 9365408664768. Its totient is φ = 9087440140800.

The previous prime is 9225885643519. The next prime is 9225885643589. The reversal of 9225885643531 is 1353465885229.

It is a cyclic number.

It is not a de Polignac number, because 9225885643531 - 2¹³ = 9225885635339 is a prime.

It is a super-2 number, since 2×9225885643531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9225885643531.

It is not an unprimeable number, because it can be changed into a prime (9225885643591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15835111 + ... + 16407391.

It is an arithmetic number, because the mean of its divisors is an integer number (585338041548).

Almost surely, 2^{9225885643531} is an apocalyptic number.

9225885643531 is a deficient number, since it is larger than the sum of its proper divisors (139523021237).

9225885643531 is a wasteful number, since it uses less digits than its factorization.

9225885643531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573222.

The product of its digits is 62208000, while the sum is 61.

The spelling of 9225885643531 in words is "nine trillion, two hundred twenty-five billion, eight hundred eighty-five million, six hundred forty-three thousand, five hundred thirty-one".