55577763 has 12 divisors (see below), whose sum is σ = 80448888. Its totient is φ = 36973440.

The previous prime is 55577719. The next prime is 55577789. The reversal of 55577763 is 36777555.

55577763 is a `hidden beast` number, since 5 + 5 + 577 + 76 + 3 = 666.

It is not a de Polignac number, because 55577763 - 2⁸ = 55577507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55577363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870 + ... + 10707.

It is an arithmetic number, because the mean of its divisors is an integer number (6704074).

Almost surely, 2^55577763 is an apocalyptic number.

55577763 is a deficient number, since it is larger than the sum of its proper divisors (24871125).

55577763 is a wasteful number, since it uses less digits than its factorization.

55577763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074 (or 13071 counting only the distinct ones).

The product of its digits is 771750, while the sum is 45.

The square root of 55577763 is about 7455.0494968176. The cubic root of 55577763 is about 381.6222497674.

The spelling of 55577763 in words is "fifty-five million, five hundred seventy-seven thousand, seven hundred sixty-three".