42049425 has 24 divisors (see below), whose sum is σ = 75843360. Its totient is φ = 20387200.

The previous prime is 42049417. The next prime is 42049429. The reversal of 42049425 is 52494024.

It is not a de Polignac number, because 42049425 - 2³ = 42049417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42049392 and 42049401.

It is not an unprimeable number, because it can be changed into a prime (42049429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24660 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (3160140).

Almost surely, 2^42049425 is an apocalyptic number.

It is an amenable number.

42049425 is a deficient number, since it is larger than the sum of its proper divisors (33793935).

42049425 is a wasteful number, since it uses less digits than its factorization.

42049425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50993 (or 50988 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42049425 is about 6484.5527987672. The cubic root of 42049425 is about 347.7389623214.

The spelling of 42049425 in words is "forty-two million, forty-nine thousand, four hundred twenty-five".