42725256 has 96 divisors (see below), whose sum is σ = 127059840. Its totient is φ = 11932032.

The previous prime is 42725201. The next prime is 42725279. The reversal of 42725256 is 65252724.

It is a congruent number.

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, 54886 + ... + 55658.

It is an arithmetic number, because the mean of its divisors is an integer number (1323540).

Almost surely, 2^42725256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42725256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63529920).

42725256 is an abundant number, since it is smaller than the sum of its proper divisors (84334584).

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

42725256 is a wasteful number, since it uses less digits than its factorization.

42725256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 832 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 42725256 is about 6536.4559204511. The cubic root of 42725256 is about 349.5920580419.

The spelling of 42725256 in words is "forty-two million, seven hundred twenty-five thousand, two hundred fifty-six".