6223511540 has 12 divisors (see below), whose sum is σ = 13069374276. Its totient is φ = 2489404608.

The previous prime is 6223511537. The next prime is 6223511549. The reversal of 6223511540 is 451153226.

It can be written as a sum of positive squares in 2 ways, for example, as 1695298276 + 4528213264 = 41174^2 + 67292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6223511549) 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, 155587769 + ... + 155587808.

It is an arithmetic number, because the mean of its divisors is an integer number (1089114523).

Almost surely, 2^6223511540 is an apocalyptic number.

It is an amenable number.

6223511540 is an abundant number, since it is smaller than the sum of its proper divisors (6845862736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6223511540 is a wasteful number, since it uses less digits than its factorization.

6223511540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311175586 (or 311175584 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6223511540 is about 78889.2358943855. The cubic root of 6223511540 is about 1839.4098158371.

Adding to 6223511540 its reverse (451153226), we get a palindrome (6674664766).

The spelling of 6223511540 in words is "six billion, two hundred twenty-three million, five hundred eleven thousand, five hundred forty".