10531551500 has 48 divisors (see below), whose sum is σ = 23102483040. Its totient is φ = 4194017600.

The previous prime is 10531551473. The next prime is 10531551509. The reversal of 10531551500 is 515513501.

It is a super-2 number, since 2×10531551500² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10531551500.

It is not an unprimeable number, because it can be changed into a prime (10531551509) 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, 67106 + ... + 159894.

It is an arithmetic number, because the mean of its divisors is an integer number (481301730).

Almost surely, 2^10531551500 is an apocalyptic number.

10531551500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10531551500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11551241520).

10531551500 is an abundant number, since it is smaller than the sum of its proper divisors (12570931540).

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

10531551500 is a wasteful number, since it uses less digits than its factorization.

10531551500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93035 (or 93023 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 26.

The spelling of 10531551500 in words is "ten billion, five hundred thirty-one million, five hundred fifty-one thousand, five hundred".