42550025 has 48 divisors (see below), whose sum is σ = 64757760. Its totient is φ = 27086400.

The previous prime is 42550019. The next prime is 42550051. The reversal of 42550025 is 52005524.

It is not a de Polignac number, because 42550025 - 2¹⁴ = 42533641 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222680 + ... + 222870.

It is an arithmetic number, because the mean of its divisors is an integer number (1349120).

Almost surely, 2^42550025 is an apocalyptic number.

It is an amenable number.

42550025 is a deficient number, since it is larger than the sum of its proper divisors (22207735).

42550025 is a wasteful number, since it uses less digits than its factorization.

42550025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 42550025 is about 6523.0380192055. The cubic root of 42550025 is about 349.1134706551.

Adding to 42550025 its reverse (52005524), we get a palindrome (94555549).

The spelling of 42550025 in words is "forty-two million, five hundred fifty thousand, twenty-five".