55443634561430 has 16 divisors (see below), whose sum is σ = 100086146084880. Its totient is φ = 22113541852512.

The previous prime is 55443634561429. The next prime is 55443634561463. The reversal of 55443634561430 is 3416543634455.

It is a happy number.

It is a super-2 number, since 2×55443634561430² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7988992865 + ... + 7988999804.

It is an arithmetic number, because the mean of its divisors is an integer number (6255384130305).

Almost surely, 2^{55443634561430} is an apocalyptic number.

55443634561430 is a deficient number, since it is larger than the sum of its proper divisors (44642511523450).

55443634561430 is a wasteful number, since it uses less digits than its factorization.

55443634561430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977993023.

The product of its (nonzero) digits is 31104000, while the sum is 53.

The spelling of 55443634561430 in words is "fifty-five trillion, four hundred forty-three billion, six hundred thirty-four million, five hundred sixty-one thousand, four hundred thirty".