42371554 has 4 divisors (see below), whose sum is σ = 63557334. Its totient is φ = 21185776.

The previous prime is 42371551. The next prime is 42371569. The reversal of 42371554 is 45517324.

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., 30503529 + 11868025 = 5523^2 + 3445^2 .

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (42371551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10592887 + ... + 10592890.

Almost surely, 2^42371554 is an apocalyptic number.

42371554 is a deficient number, since it is larger than the sum of its proper divisors (21185780).

42371554 is a wasteful number, since it uses less digits than its factorization.

42371554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21185779.

The product of its digits is 16800, while the sum is 31.

The square root of 42371554 is about 6509.3435920990. The cubic root of 42371554 is about 348.6246817033.

Adding to 42371554 its reverse (45517324), we get a palindrome (87888878).

The spelling of 42371554 in words is "forty-two million, three hundred seventy-one thousand, five hundred fifty-four".