55779234671 has 4 divisors (see below), whose sum is σ = 57286781592. Its totient is φ = 54271687752.

The previous prime is 55779234649. The next prime is 55779234673. The reversal of 55779234671 is 17643297755.

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 55779234671 - 2²² = 55775040367 is a prime.

It is a super-2 number, since 2×55779234671² (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 (55779234673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753773405 + ... + 753773478.

It is an arithmetic number, because the mean of its divisors is an integer number (14321695398).

Almost surely, 2^55779234671 is an apocalyptic number.

55779234671 is a deficient number, since it is larger than the sum of its proper divisors (1507546921).

55779234671 is a wasteful number, since it uses less digits than its factorization.

55779234671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507546920.

The product of its digits is 11113200, while the sum is 56.

The spelling of 55779234671 in words is "fifty-five billion, seven hundred seventy-nine million, two hundred thirty-four thousand, six hundred seventy-one".