55435930691 has 8 divisors (see below), whose sum is σ = 55628851200. Its totient is φ = 55243104840.

The previous prime is 55435930687. The next prime is 55435930729. The reversal of 55435930691 is 19603953455.

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 55435930691 - 2² = 55435930687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55435930601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272020 + ... + 1314878.

It is an arithmetic number, because the mean of its divisors is an integer number (6953606400).

Almost surely, 2^55435930691 is an apocalyptic number.

55435930691 is a deficient number, since it is larger than the sum of its proper divisors (192920509).

55435930691 is a wasteful number, since it uses less digits than its factorization.

55435930691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47329.

The product of its (nonzero) digits is 2187000, while the sum is 50.

The spelling of 55435930691 in words is "fifty-five billion, four hundred thirty-five million, nine hundred thirty thousand, six hundred ninety-one".