55763787 has 16 divisors (see below), whose sum is σ = 75220992. Its totient is φ = 36744480.

The previous prime is 55763779. The next prime is 55763831. The reversal of 55763787 is 78736755.

It is not a de Polignac number, because 55763787 - 2³ = 55763779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55763717) 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, 175753 + ... + 176069.

It is an arithmetic number, because the mean of its divisors is an integer number (4701312).

Almost surely, 2^55763787 is an apocalyptic number.

55763787 is a deficient number, since it is larger than the sum of its proper divisors (19457205).

55763787 is a wasteful number, since it uses less digits than its factorization.

55763787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 1234800, while the sum is 48.

The square root of 55763787 is about 7467.5154502686. The cubic root of 55763787 is about 382.0475507997.

The spelling of 55763787 in words is "fifty-five million, seven hundred sixty-three thousand, seven hundred eighty-seven".