42152512 has 14 divisors (see below), whose sum is σ = 83646518. Its totient is φ = 21076224.

The previous prime is 42152489. The next prime is 42152521. The reversal of 42152512 is 21525124.

It can be written as a sum of positive squares in only one way, i.e., 23970816 + 18181696 = 4896^2 + 4264^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329253 + ... + 329380.

Almost surely, 2^42152512 is an apocalyptic number.

It is an amenable number.

42152512 is a deficient number, since it is larger than the sum of its proper divisors (41494006).

42152512 is an equidigital number, since it uses as much as digits as its factorization.

42152512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658645 (or 658635 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 42152512 is about 6492.4965922209. The cubic root of 42152512 is about 348.0228989204.

Adding to 42152512 its reverse (21525124), we get a palindrome (63677636).

The spelling of 42152512 in words is "forty-two million, one hundred fifty-two thousand, five hundred twelve".