42430444553 has 4 divisors (see below), whose sum is σ = 48491936640. Its totient is φ = 36368952468.

The previous prime is 42430444547. The next prime is 42430444571. The reversal of 42430444553 is 35544403424.

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 42430444553 - 2¹⁴ = 42430428169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42430444253) 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, 3030746033 + ... + 3030746046.

It is an arithmetic number, because the mean of its divisors is an integer number (12122984160).

Almost surely, 2^42430444553 is an apocalyptic number.

It is an amenable number.

42430444553 is a deficient number, since it is larger than the sum of its proper divisors (6061492087).

42430444553 is an equidigital number, since it uses as much as digits as its factorization.

42430444553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061492086.

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 42430444553 its reverse (35544403424), we get a palindrome (77974847977).

The spelling of 42430444553 in words is "forty-two billion, four hundred thirty million, four hundred forty-four thousand, five hundred fifty-three".