105420302525 has 12 divisors (see below), whose sum is σ = 137601237600. Its totient is φ = 79897492080.

The previous prime is 105420302479. The next prime is 105420302629. The reversal of 105420302525 is 525203024501.

It is not a de Polignac number, because 105420302525 - 2⁶ = 105420302461 is a prime.

It is a super-2 number, since 2×105420302525² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110968265 + ... + 110969214.

It is an arithmetic number, because the mean of its divisors is an integer number (11466769800).

Almost surely, 2^105420302525 is an apocalyptic number.

It is an amenable number.

105420302525 is a deficient number, since it is larger than the sum of its proper divisors (32180935075).

105420302525 is a wasteful number, since it uses less digits than its factorization.

105420302525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221937508 (or 221937503 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 105420302525 in words is "one hundred five billion, four hundred twenty million, three hundred two thousand, five hundred twenty-five".