55716765 has 48 divisors (see below), whose sum is σ = 99786240. Its totient is φ = 26507520.

The previous prime is 55716763. The next prime is 55716781. The reversal of 55716765 is 56761755.

It is not a de Polignac number, because 55716765 - 2¹ = 55716763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55716763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78231 + ... + 78939.

It is an arithmetic number, because the mean of its divisors is an integer number (2078880).

Almost surely, 2^55716765 is an apocalyptic number.

It is an amenable number.

55716765 is a deficient number, since it is larger than the sum of its proper divisors (44069475).

55716765 is a wasteful number, since it uses less digits than its factorization.

55716765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 761 counting only the distinct ones).

The product of its digits is 220500, while the sum is 42.

The square root of 55716765 is about 7464.3663495303. The cubic root of 55716765 is about 381.9401352604.

The spelling of 55716765 in words is "fifty-five million, seven hundred sixteen thousand, seven hundred sixty-five".