55533443431403 has 8 divisors (see below), whose sum is σ = 65514108380160. Its totient is φ = 46064607454440.

The previous prime is 55533443431373. The next prime is 55533443431421. The reversal of 55533443431403 is 30413434433555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55533443431403 - 2¹² = 55533443427307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55533443431463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127957242713 + ... + 127957243146.

It is an arithmetic number, because the mean of its divisors is an integer number (8189263547520).

Almost surely, 2^{55533443431403} is an apocalyptic number.

55533443431403 is a deficient number, since it is larger than the sum of its proper divisors (9980664948757).

55533443431403 is a wasteful number, since it uses less digits than its factorization.

55533443431403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255914485897.

The product of its (nonzero) digits is 7776000, while the sum is 47.

Adding to 55533443431403 its reverse (30413434433555), we get a palindrome (85946877864958).

The spelling of 55533443431403 in words is "fifty-five trillion, five hundred thirty-three billion, four hundred forty-three million, four hundred thirty-one thousand, four hundred three".