42508895 has 16 divisors (see below), whose sum is σ = 59929632. Its totient is φ = 28536960.

The previous prime is 42508883. The next prime is 42508901. The reversal of 42508895 is 59880524.

It is not a de Polignac number, because 42508895 - 2²⁰ = 41460319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29012 + ... + 30441.

It is an arithmetic number, because the mean of its divisors is an integer number (3745602).

Almost surely, 2^42508895 is an apocalyptic number.

42508895 is a deficient number, since it is larger than the sum of its proper divisors (17420737).

42508895 is a wasteful number, since it uses less digits than its factorization.

42508895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59482.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 42508895 is about 6519.8845848680. The cubic root of 42508895 is about 349.0009468972. Note that the first 3 decimals are identical.

The spelling of 42508895 in words is "forty-two million, five hundred eight thousand, eight hundred ninety-five".