10510512505 has 8 divisors (see below), whose sum is σ = 12724231752. Its totient is φ = 8333998848.

The previous prime is 10510512491. The next prime is 10510512539. The reversal of 10510512505 is 50521501501.

It can be written as a sum of positive squares in 4 ways, for example, as 1285294201 + 9225218304 = 35851^2 + 96048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10510512505 - 2³¹ = 8363028857 is a prime.

It is a super-2 number, since 2×10510512505² (a number of 21 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 10510512505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9300774 + ... + 9301903.

It is an arithmetic number, because the mean of its divisors is an integer number (1590528969).

Almost surely, 2^10510512505 is an apocalyptic number.

It is an amenable number.

10510512505 is a deficient number, since it is larger than the sum of its proper divisors (2213719247).

10510512505 is a wasteful number, since it uses less digits than its factorization.

10510512505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18602795.

The product of its (nonzero) digits is 1250, while the sum is 25.

The spelling of 10510512505 in words is "ten billion, five hundred ten million, five hundred twelve thousand, five hundred five".