55547757 has 12 divisors (see below), whose sum is σ = 81434080. Its totient is φ = 36478728.

The previous prime is 55547747. The next prime is 55547771. The reversal of 55547757 is 75774555.

It is a happy number.

55547757 is a `hidden beast` number, since 55 + 547 + 7 + 57 = 666.

It is not a de Polignac number, because 55547757 - 2⁴ = 55547741 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45457 + ... + 46662.

Almost surely, 2^55547757 is an apocalyptic number.

It is an amenable number.

55547757 is a deficient number, since it is larger than the sum of its proper divisors (25886323).

55547757 is a wasteful number, since it uses less digits than its factorization.

55547757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92192 (or 92189 counting only the distinct ones).

The product of its digits is 857500, while the sum is 45.

The square root of 55547757 is about 7453.0367636286. The cubic root of 55547757 is about 381.5535591137.

The spelling of 55547757 in words is "fifty-five million, five hundred forty-seven thousand, seven hundred fifty-seven".