55156776119 has 4 divisors (see below), whose sum is σ = 55644889296. Its totient is φ = 54668662944.

The previous prime is 55156776109. The next prime is 55156776217. The reversal of 55156776119 is 91167765155.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55156776119 is a prime.

It is a super-2 number, since 2×55156776119² (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 (55156776109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244056419 + ... + 244056644.

It is an arithmetic number, because the mean of its divisors is an integer number (13911222324).

Almost surely, 2^55156776119 is an apocalyptic number.

55156776119 is a deficient number, since it is larger than the sum of its proper divisors (488113177).

55156776119 is a wasteful number, since it uses less digits than its factorization.

55156776119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488113176.

The product of its digits is 1984500, while the sum is 53.

The spelling of 55156776119 in words is "fifty-five billion, one hundred fifty-six million, seven hundred seventy-six thousand, one hundred nineteen".