10545531256 has 64 divisors (see below), whose sum is σ = 22568868000. Its totient is φ = 4576309248.

The previous prime is 10545531253. The next prime is 10545531277. The reversal of 10545531256 is 65213554501.

It is a happy number.

It is a super-2 number, since 2×10545531256² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10545531253) 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 15 ways as a sum of consecutive naturals, for example, 2266020 + ... + 2270668.

Almost surely, 2^10545531256 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 10545531256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11284434000).

10545531256 is an abundant number, since it is smaller than the sum of its proper divisors (12023336744).

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

10545531256 is a wasteful number, since it uses less digits than its factorization.

10545531256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968 (or 5964 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 10545531256 in words is "ten billion, five hundred forty-five million, five hundred thirty-one thousand, two hundred fifty-six".