42830125 has 16 divisors (see below), whose sum is σ = 57565872. Its totient is φ = 31627200.

The previous prime is 42830119. The next prime is 42830141. The reversal of 42830125 is 52103824.

It can be written as a sum of positive squares in 8 ways, for example, as 24631369 + 18198756 = 4963^2 + 4266^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42830125 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 42830125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11554 + ... + 14803.

It is an arithmetic number, because the mean of its divisors is an integer number (3597867).

Almost surely, 2^42830125 is an apocalyptic number.

It is an amenable number.

42830125 is a deficient number, since it is larger than the sum of its proper divisors (14735747).

42830125 is a wasteful number, since it uses less digits than its factorization.

42830125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385 (or 26375 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42830125 is about 6544.4728588329. The cubic root of 42830125 is about 349.8778485300.

Adding to 42830125 its reverse (52103824), we get a palindrome (94933949).

The spelling of 42830125 in words is "forty-two million, eight hundred thirty thousand, one hundred twenty-five".