105642525 has 12 divisors (see below), whose sum is σ = 174662432. Its totient is φ = 56342640.

The previous prime is 105642521. The next prime is 105642553. The reversal of 105642525 is 525246501.

It is not a de Polignac number, because 105642525 - 2² = 105642521 is a prime.

It is a super-2 number, since 2×105642525² = 22320686176751250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105642492 and 105642501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105642521) 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, 704209 + ... + 704358.

Almost surely, 2^105642525 is an apocalyptic number.

105642525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105642525 is a deficient number, since it is larger than the sum of its proper divisors (69019907).

105642525 is a wasteful number, since it uses less digits than its factorization.

105642525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408580 (or 1408575 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 105642525 is about 10278.2549588926. The cubic root of 105642525 is about 472.7297390662.

The spelling of 105642525 in words is "one hundred five million, six hundred forty-two thousand, five hundred twenty-five".