10503523125 has 70 divisors (see below), whose sum is σ = 19679655182. Its totient is φ = 5601636000.

The previous prime is 10503523087. The next prime is 10503523127. The reversal of 10503523125 is 52132530501.

It is a happy number.

10503523125 is a `hidden beast` number, since 10 + 5 + 0 + 3 + 523 + 125 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 2746493649 + 7757029476 = 52407^2 + 88074^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10503523125 is a prime.

It is a super-2 number, since 2×10503523125² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10503523127) by changing a digit.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 444099 + ... + 467151.

Almost surely, 2^10503523125 is an apocalyptic number.

10503523125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10503523125 is a deficient number, since it is larger than the sum of its proper divisors (9176132057).

10503523125 is an frugal number, since it uses more digits than its factorization.

10503523125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23091 (or 23061 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 10503523125 in words is "ten billion, five hundred three million, five hundred twenty-three thousand, one hundred twenty-five".