55745685 has 48 divisors (see below), whose sum is σ = 102847680. Its totient is φ = 28647360.

The previous prime is 55745653. The next prime is 55745687. The reversal of 55745685 is 58654755.

55745685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55745685 - 2⁵ = 55745653 is a prime.

It is a super-2 number, since 2×55745685² = 6215162792238450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55745685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55745687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113290 + ... + 113780.

It is an arithmetic number, because the mean of its divisors is an integer number (2142660).

Almost surely, 2^55745685 is an apocalyptic number.

It is an amenable number.

55745685 is a deficient number, since it is larger than the sum of its proper divisors (47101995).

55745685 is a wasteful number, since it uses less digits than its factorization.

55745685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 528 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 55745685 is about 7466.3033021704. The cubic root of 55745685 is about 382.0062063263.

The spelling of 55745685 in words is "fifty-five million, seven hundred forty-five thousand, six hundred eighty-five".