42030554 has 4 divisors (see below), whose sum is σ = 63045834. Its totient is φ = 21015276.

The previous prime is 42030533. The next prime is 42030559. The reversal of 42030554 is 45503024.

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., 40005625 + 2024929 = 6325^2 + 1423^2 .

It is not an unprimeable number, because it can be changed into a prime (42030559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507637 + ... + 10507640.

Almost surely, 2^42030554 is an apocalyptic number.

42030554 is a deficient number, since it is larger than the sum of its proper divisors (21015280).

42030554 is a wasteful number, since it uses less digits than its factorization.

42030554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21015279.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 42030554 is about 6483.0975621226. The cubic root of 42030554 is about 347.6869349444.

Adding to 42030554 its reverse (45503024), we get a palindrome (87533578).

The spelling of 42030554 in words is "forty-two million, thirty thousand, five hundred fifty-four".