42052725 has 72 divisors (see below), whose sum is σ = 88556832. Its totient is φ = 18806400.

The previous prime is 42052723. The next prime is 42052739. The reversal of 42052725 is 52725024.

It is not a de Polignac number, because 42052725 - 2¹ = 42052723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31522 + ... + 32828.

It is an arithmetic number, because the mean of its divisors is an integer number (1229956).

Almost surely, 2^42052725 is an apocalyptic number.

42052725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42052725 is an abundant number, since it is smaller than the sum of its proper divisors (46504107).

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

42052725 is a wasteful number, since it uses less digits than its factorization.

42052725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1339 counting only the distinct ones).

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

The square root of 42052725 is about 6484.8072446296. The cubic root of 42052725 is about 347.7480588276.

Adding to 42052725 its reverse (52725024), we get a palindrome (94777749).

The spelling of 42052725 in words is "forty-two million, fifty-two thousand, seven hundred twenty-five".