42315512 has 8 divisors (see below), whose sum is σ = 79341600. Its totient is φ = 21157752.

The previous prime is 42315487. The next prime is 42315521. The reversal of 42315512 is 21551324.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2644712 + ... + 2644727.

It is an arithmetic number, because the mean of its divisors is an integer number (9917700).

Almost surely, 2^42315512 is an apocalyptic number.

It is an amenable number.

42315512 is a deficient number, since it is larger than the sum of its proper divisors (37026088).

42315512 is a wasteful number, since it uses less digits than its factorization.

42315512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289445 (or 5289441 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 42315512 is about 6505.0374326363. The cubic root of 42315512 is about 348.4709130968.

Adding to 42315512 its reverse (21551324), we get a palindrome (63866836).

The spelling of 42315512 in words is "forty-two million, three hundred fifteen thousand, five hundred twelve".