42501956 has 12 divisors (see below), whose sum is σ = 85003968. Its totient is φ = 18215112.

The previous prime is 42501923. The next prime is 42501973. The reversal of 42501956 is 65910524.

It is a happy number.

42501956 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758936 + ... + 758991.

It is an arithmetic number, because the mean of its divisors is an integer number (7083664).

Almost surely, 2^42501956 is an apocalyptic number.

It is an amenable number.

42501956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42501956 is a wasteful number, since it uses less digits than its factorization.

42501956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517938 (or 1517936 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 42501956 is about 6519.3524218284. The cubic root of 42501956 is about 348.9819559750.

The spelling of 42501956 in words is "forty-two million, five hundred one thousand, nine hundred fifty-six".