42515516 has 24 divisors (see below), whose sum is σ = 77182560. Its totient is φ = 20475072.

The previous prime is 42515507. The next prime is 42515531. The reversal of 42515516 is 61551524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13850 + ... + 16638.

It is an arithmetic number, because the mean of its divisors is an integer number (3215940).

Almost surely, 2^42515516 is an apocalyptic number.

It is an amenable number.

42515516 is a deficient number, since it is larger than the sum of its proper divisors (34667044).

42515516 is a wasteful number, since it uses less digits than its factorization.

42515516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2931 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 42515516 is about 6520.3923194851. The cubic root of 42515516 is about 349.0190655780.

The spelling of 42515516 in words is "forty-two million, five hundred fifteen thousand, five hundred sixteen".