42500425 has 24 divisors (see below), whose sum is σ = 60880032. Its totient is φ = 29088000.

The previous prime is 42500401. The next prime is 42500431. The reversal of 42500425 is 52400524.

It is not a de Polignac number, because 42500425 - 2¹¹ = 42498377 is a prime.

It is a super-2 number, since 2×42500425² = 3612572250361250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42500396 and 42500405.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130 + ... + 9220.

It is an arithmetic number, because the mean of its divisors is an integer number (2536668).

Almost surely, 2^42500425 is an apocalyptic number.

It is an amenable number.

42500425 is a deficient number, since it is larger than the sum of its proper divisors (18379607).

42500425 is a wasteful number, since it uses less digits than its factorization.

42500425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9129 (or 9124 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42500425 is about 6519.2350011332. The cubic root of 42500425 is about 348.9777655969.

Adding to 42500425 its reverse (52400524), we get a palindrome (94900949).

Subtracting 42500425 from its reverse (52400524), we obtain a palindrome (9900099).

It can be divided in two parts, 42500 and 425, that multiplied together give a square (18062500 = 4250²).

The spelling of 42500425 in words is "forty-two million, five hundred thousand, four hundred twenty-five".