42554848421 has 4 divisors (see below), whose sum is σ = 42565699872. Its totient is φ = 42543996972.

The previous prime is 42554848381. The next prime is 42554848463. The reversal of 42554848421 is 12484845524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42554848421 - 2²² = 42550654117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42554148421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5419841 + ... + 5427686.

It is an arithmetic number, because the mean of its divisors is an integer number (10641424968).

Almost surely, 2^42554848421 is an apocalyptic number.

It is an amenable number.

42554848421 is a deficient number, since it is larger than the sum of its proper divisors (10851451).

42554848421 is a wasteful number, since it uses less digits than its factorization.

42554848421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851450.

The product of its digits is 1638400, while the sum is 47.

The spelling of 42554848421 in words is "forty-two billion, five hundred fifty-four million, eight hundred forty-eight thousand, four hundred twenty-one".