42553825 has 24 divisors (see below), whose sum is σ = 56157120. Its totient is φ = 31896000.

The previous prime is 42553807. The next prime is 42553829. The reversal of 42553825 is 52835524.

It is not a de Polignac number, because 42553825 - 2⁷ = 42553697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42553829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47532 + ... + 48418.

It is an arithmetic number, because the mean of its divisors is an integer number (2339880).

Almost surely, 2^42553825 is an apocalyptic number.

It is an amenable number.

42553825 is a deficient number, since it is larger than the sum of its proper divisors (13603295).

42553825 is a wasteful number, since it uses less digits than its factorization.

42553825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1012 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 42553825 is about 6523.3292880246. The cubic root of 42553825 is about 349.1238630634.

The spelling of 42553825 in words is "forty-two million, five hundred fifty-three thousand, eight hundred twenty-five".