55547711 has 6 divisors (see below), whose sum is σ = 55832112. Its totient is φ = 55264460.

The previous prime is 55547689. The next prime is 55547717. The reversal of 55547711 is 11774555.

It is a de Polignac number, because none of the positive numbers 2^k-55547711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55547717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128666 + ... + 129096.

It is an arithmetic number, because the mean of its divisors is an integer number (9305352).

Almost surely, 2^55547711 is an apocalyptic number.

55547711 is a deficient number, since it is larger than the sum of its proper divisors (284401).

55547711 is an frugal number, since it uses more digits than its factorization.

55547711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 790 counting only the distinct ones).

The product of its digits is 24500, while the sum is 35.

The square root of 55547711 is about 7453.0336776376. The cubic root of 55547711 is about 381.5534537901.

The spelling of 55547711 in words is "fifty-five million, five hundred forty-seven thousand, seven hundred eleven".