42453422554 has 4 divisors (see below), whose sum is σ = 63680133834. Its totient is φ = 21226711276.

The previous prime is 42453422549. The next prime is 42453422573. The reversal of 42453422554 is 45522435424.

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., 27206853025 + 15246569529 = 164945^2 + 123477^2 .

It is a super-3 number, since 3×42453422554³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10613355637 + ... + 10613355640.

Almost surely, 2^42453422554 is an apocalyptic number.

42453422554 is a deficient number, since it is larger than the sum of its proper divisors (21226711280).

42453422554 is a wasteful number, since it uses less digits than its factorization.

42453422554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21226711279.

The product of its digits is 768000, while the sum is 40.

Adding to 42453422554 its reverse (45522435424), we get a palindrome (87975857978).

The spelling of 42453422554 in words is "forty-two billion, four hundred fifty-three million, four hundred twenty-two thousand, five hundred fifty-four".