55756911 has 16 divisors (see below), whose sum is σ = 85413888. Its totient is φ = 31692000.

The previous prime is 55756907. The next prime is 55756919. The reversal of 55756911 is 11965755.

It is not a de Polignac number, because 55756911 - 2² = 55756907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55756911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55756919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2940 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (5338368).

Almost surely, 2^55756911 is an apocalyptic number.

55756911 is a deficient number, since it is larger than the sum of its proper divisors (29656977).

55756911 is a wasteful number, since it uses less digits than its factorization.

55756911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14102.

The product of its digits is 47250, while the sum is 39.

The square root of 55756911 is about 7467.0550419827. The cubic root of 55756911 is about 382.0318472576.

The spelling of 55756911 in words is "fifty-five million, seven hundred fifty-six thousand, nine hundred eleven".