55711757 has 4 divisors (see below), whose sum is σ = 55806300. Its totient is φ = 55617216.

The previous prime is 55711741. The next prime is 55711763. The reversal of 55711757 is 75711755.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36228361 + 19483396 = 6019^2 + 4414^2 .

It is a cyclic number.

It is not a de Polignac number, because 55711757 - 2⁴ = 55711741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55711757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55711157) 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, 46382 + ... + 47567.

It is an arithmetic number, because the mean of its divisors is an integer number (13951575).

Almost surely, 2^55711757 is an apocalyptic number.

It is an amenable number.

55711757 is a deficient number, since it is larger than the sum of its proper divisors (94543).

55711757 is an equidigital number, since it uses as much as digits as its factorization.

55711757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94542.

The product of its digits is 42875, while the sum is 38.

The square root of 55711757 is about 7464.0308815010. The cubic root of 55711757 is about 381.9286915862.

The spelling of 55711757 in words is "fifty-five million, seven hundred eleven thousand, seven hundred fifty-seven".