55433535431 has 4 divisors (see below), whose sum is σ = 55436126112. Its totient is φ = 55430944752.

The previous prime is 55433535419. The next prime is 55433535433. The reversal of 55433535431 is 13453533455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55433535431 - 2²² = 55429341127 is a prime.

It is a super-2 number, since 2×55433535431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55433535433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262975 + ... + 1306128.

It is an arithmetic number, because the mean of its divisors is an integer number (13859031528).

Almost surely, 2^55433535431 is an apocalyptic number.

55433535431 is a deficient number, since it is larger than the sum of its proper divisors (2590681).

55433535431 is a wasteful number, since it uses less digits than its factorization.

55433535431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590680.

The product of its digits is 810000, while the sum is 41.

The spelling of 55433535431 in words is "fifty-five billion, four hundred thirty-three million, five hundred thirty-five thousand, four hundred thirty-one".