42523325 has 12 divisors (see below), whose sum is σ = 56785428. Its totient is φ = 31401600.

The previous prime is 42523291. The next prime is 42523333. The reversal of 42523325 is 52332524.

It can be written as a sum of positive squares in 6 ways, for example, as 14760964 + 27762361 = 3842^2 + 5269^2 .

It is not a de Polignac number, because 42523325 - 2¹⁰ = 42522301 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42523294 and 42523303.

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, 65096 + ... + 65745.

It is an arithmetic number, because the mean of its divisors is an integer number (4732119).

Almost surely, 2^42523325 is an apocalyptic number.

It is an amenable number.

42523325 is a deficient number, since it is larger than the sum of its proper divisors (14262103).

42523325 is a wasteful number, since it uses less digits than its factorization.

42523325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130864 (or 130859 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 42523325 is about 6520.9911056526. The cubic root of 42523325 is about 349.0404328598.

Adding to 42523325 its reverse (52332524), we get a palindrome (94855849).

The spelling of 42523325 in words is "forty-two million, five hundred twenty-three thousand, three hundred twenty-five".