42775925 has 12 divisors (see below), whose sum is σ = 53541216. Its totient is φ = 33898800.

The previous prime is 42775913. The next prime is 42775979. The reversal of 42775925 is 52957724.

It is not a de Polignac number, because 42775925 - 2⁶ = 42775861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5321 + ... + 10670.

It is an arithmetic number, because the mean of its divisors is an integer number (4461768).

Almost surely, 2^42775925 is an apocalyptic number.

It is an amenable number.

42775925 is a deficient number, since it is larger than the sum of its proper divisors (10765291).

42775925 is a wasteful number, since it uses less digits than its factorization.

42775925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16108 (or 16103 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 42775925 is about 6540.3306491339. The cubic root of 42775925 is about 349.7302002398.

The spelling of 42775925 in words is "forty-two million, seven hundred seventy-five thousand, nine hundred twenty-five".