42025725 has 36 divisors (see below), whose sum is σ = 86029216. Its totient is φ = 19211040.

The previous prime is 42025723. The next prime is 42025729. The reversal of 42025725 is 52752024.

It is not a de Polignac number, because 42025725 - 2¹ = 42025723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11767 + ... + 14916.

Almost surely, 2^42025725 is an apocalyptic number.

42025725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42025725 is an abundant number, since it is smaller than the sum of its proper divisors (44003491).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42025725 is a wasteful number, since it uses less digits than its factorization.

42025725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26706 (or 26698 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42025725 is about 6482.7251214285. The cubic root of 42025725 is about 347.6736188814.

Adding to 42025725 its reverse (52752024), we get a palindrome (94777749).

The spelling of 42025725 in words is "forty-two million, twenty-five thousand, seven hundred twenty-five".