10533381256 has 8 divisors (see below), whose sum is σ = 19750089870. Its totient is φ = 5266690624.

The previous prime is 10533381227. The next prime is 10533381259. The reversal of 10533381256 is 65218333501.

It can be written as a sum of positive squares in only one way, i.e., 10513221156 + 20160100 = 102534^2 + 4490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10533381256² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10533381259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658336321 + ... + 658336336.

Almost surely, 2^10533381256 is an apocalyptic number.

It is an amenable number.

10533381256 is a deficient number, since it is larger than the sum of its proper divisors (9216708614).

10533381256 is a wasteful number, since it uses less digits than its factorization.

10533381256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316672663 (or 1316672659 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 10533381256 in words is "ten billion, five hundred thirty-three million, three hundred eighty-one thousand, two hundred fifty-six".