5642531222 has 4 divisors (see below), whose sum is σ = 8463796836. Its totient is φ = 2821265610.

The previous prime is 5642531221. The next prime is 5642531231. The reversal of 5642531222 is 2221352465.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642531221) 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 as a sum of consecutive naturals, namely, 1410632804 + ... + 1410632807.

It is an arithmetic number, because the mean of its divisors is an integer number (2115949209).

Almost surely, 2^5642531222 is an apocalyptic number.

5642531222 is a deficient number, since it is larger than the sum of its proper divisors (2821265614).

5642531222 is a wasteful number, since it uses less digits than its factorization.

5642531222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821265613.

The product of its digits is 28800, while the sum is 32.

The square root of 5642531222 is about 75116.7838901533. The cubic root of 5642531222 is about 1780.2923416235.

Adding to 5642531222 its reverse (2221352465), we get a palindrome (7863883687).

The spelling of 5642531222 in words is "five billion, six hundred forty-two million, five hundred thirty-one thousand, two hundred twenty-two".