55823685 has 16 divisors (see below), whose sum is σ = 90002880. Its totient is φ = 29544320.

The previous prime is 55823683. The next prime is 55823701. The reversal of 55823685 is 58632855.

It is not a de Polignac number, because 55823685 - 2¹ = 55823683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55823683) 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, 12240 + ... + 16169.

It is an arithmetic number, because the mean of its divisors is an integer number (5625180).

Almost surely, 2^55823685 is an apocalyptic number.

It is an amenable number.

55823685 is a deficient number, since it is larger than the sum of its proper divisors (34179195).

55823685 is a wasteful number, since it uses less digits than its factorization.

55823685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28548.

The product of its digits is 288000, while the sum is 42.

The square root of 55823685 is about 7471.5249447486. The cubic root of 55823685 is about 382.1842924430.

The spelling of 55823685 in words is "fifty-five million, eight hundred twenty-three thousand, six hundred eighty-five".