10505215325 has 12 divisors (see below), whose sum is σ = 14210691648. Its totient is φ = 7640156400.

The previous prime is 10505215321. The next prime is 10505215367. The reversal of 10505215325 is 52351250501.

It is not a de Polignac number, because 10505215325 - 2² = 10505215321 is a prime.

It is a super-2 number, since 2×10505215325² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505215321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19100117 + ... + 19100666.

It is an arithmetic number, because the mean of its divisors is an integer number (1184224304).

Almost surely, 2^10505215325 is an apocalyptic number.

It is an amenable number.

10505215325 is a deficient number, since it is larger than the sum of its proper divisors (3705476323).

10505215325 is a wasteful number, since it uses less digits than its factorization.

10505215325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38200804 (or 38200799 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 10505215325 its reverse (52351250501), we get a palindrome (62856465826).

The spelling of 10505215325 in words is "ten billion, five hundred five million, two hundred fifteen thousand, three hundred twenty-five".