42543002 has 4 divisors (see below), whose sum is σ = 63814506. Its totient is φ = 21271500.

The previous prime is 42542977. The next prime is 42543041. The reversal of 42543002 is 20034524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25411681 + 17131321 = 5041^2 + 4139^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10635749 + ... + 10635752.

Almost surely, 2^42543002 is an apocalyptic number.

42543002 is a deficient number, since it is larger than the sum of its proper divisors (21271504).

42543002 is a wasteful number, since it uses less digits than its factorization.

42543002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21271503.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42543002 is about 6522.4996742047. The cubic root of 42543002 is about 349.0942622151.

Adding to 42543002 its reverse (20034524), we get a palindrome (62577526).

The spelling of 42543002 in words is "forty-two million, five hundred forty-three thousand, two".