42355025 has 12 divisors (see below), whose sum is σ = 52627212. Its totient is φ = 33815040.

The previous prime is 42355013. The next prime is 42355031. The reversal of 42355025 is 52055324.

It can be written as a sum of positive squares in 6 ways, for example, as 961 + 42354064 = 31^2 + 6508^2 .

It is not a de Polignac number, because 42355025 - 2¹⁰ = 42354001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42354985 and 42355003.

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, 13397 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (4385601).

Almost surely, 2^42355025 is an apocalyptic number.

It is an amenable number.

42355025 is a deficient number, since it is larger than the sum of its proper divisors (10272187).

42355025 is a wasteful number, since it uses less digits than its factorization.

42355025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 42355025 is about 6508.0738317877. The cubic root of 42355025 is about 348.5793433707.

The spelling of 42355025 in words is "forty-two million, three hundred fifty-five thousand, twenty-five".