5642620231 has 4 divisors (see below), whose sum is σ = 5735122264. Its totient is φ = 5550118200.

The previous prime is 5642620183. The next prime is 5642620241. The reversal of 5642620231 is 1320262465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5642620231 - 2²¹ = 5640523079 is a prime.

It is a super-2 number, since 2×5642620231² = 63678326142580986722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5642620193 and 5642620202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642620241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46250925 + ... + 46251046.

It is an arithmetic number, because the mean of its divisors is an integer number (1433780566).

Almost surely, 2^5642620231 is an apocalyptic number.

5642620231 is a deficient number, since it is larger than the sum of its proper divisors (92502033).

5642620231 is an equidigital number, since it uses as much as digits as its factorization.

5642620231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92502032.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 5642620231 is about 75117.3763586029. The cubic root of 5642620231 is about 1780.3017027418.

Adding to 5642620231 its reverse (1320262465), we get a palindrome (6962882696).

The spelling of 5642620231 in words is "five billion, six hundred forty-two million, six hundred twenty thousand, two hundred thirty-one".