42625506 has 64 divisors (see below), whose sum is σ = 106997760. Its totient is φ = 10997760.

The previous prime is 42625487. The next prime is 42625523. The reversal of 42625506 is 60552624.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118555 + ... + 118913.

It is an arithmetic number, because the mean of its divisors is an integer number (1671840).

Almost surely, 2^42625506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42625506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53498880).

42625506 is an abundant number, since it is smaller than the sum of its proper divisors (64372254).

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

42625506 is a wasteful number, since it uses less digits than its factorization.

42625506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 42625506 is about 6528.8211799681. The cubic root of 42625506 is about 349.3197836346.

The spelling of 42625506 in words is "forty-two million, six hundred twenty-five thousand, five hundred six".