42825101 has 4 divisors (see below), whose sum is σ = 46718304. Its totient is φ = 38931900.

The previous prime is 42825089. The next prime is 42825137. The reversal of 42825101 is 10152824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42825101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42825161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946585 + ... + 1946606.

It is an arithmetic number, because the mean of its divisors is an integer number (11679576).

Almost surely, 2^42825101 is an apocalyptic number.

It is an amenable number.

42825101 is a deficient number, since it is larger than the sum of its proper divisors (3893203).

42825101 is a wasteful number, since it uses less digits than its factorization.

42825101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893202.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 42825101 is about 6544.0890122308. The cubic root of 42825101 is about 349.8641676995.

Adding to 42825101 its reverse (10152824), we get a palindrome (52977925).

The spelling of 42825101 in words is "forty-two million, eight hundred twenty-five thousand, one hundred one".