5231985 has 32 divisors (see below), whose sum is σ = 9389952. Its totient is φ = 2465280.

The previous prime is 5231981. The next prime is 5231987. The reversal of 5231985 is 5891325.

5231985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5231985 - 2² = 5231981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

5231985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5231981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5677 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (293436).

Almost surely, 2^5231985 is an apocalyptic number.

5231985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5231985 is a deficient number, since it is larger than the sum of its proper divisors (4157967).

5231985 is a wasteful number, since it uses less digits than its factorization.

5231985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 10800, while the sum is 33.

The square root of 5231985 is about 2287.3532739828. The cubic root of 5231985 is about 173.6023088065.

It can be divided in two parts, 5231 and 985, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 5231985 in words is "five million, two hundred thirty-one thousand, nine hundred eighty-five".