6225540 has 96 divisors (see below), whose sum is σ = 18923520. Its totient is φ = 1524096.

The previous prime is 6225533. The next prime is 6225547. The reversal of 6225540 is 455226.

6225540 = T₈₀₀ + T₈₀₁ + ... + T₈₁₈.

It is an interprime number because it is at equal distance from previous prime (6225533) and next prime (6225547).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6225540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6225547) 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, 48957 + ... + 49083.

It is an arithmetic number, because the mean of its divisors is an integer number (197120).

Almost surely, 2^6225540 is an apocalyptic number.

6225540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6225540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9461760).

6225540 is an abundant number, since it is smaller than the sum of its proper divisors (12697980).

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

6225540 is a wasteful number, since it uses less digits than its factorization.

6225540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 6225540 is about 2495.1032042783. The cubic root of 6225540 is about 183.9609636785.

The spelling of 6225540 in words is "six million, two hundred twenty-five thousand, five hundred forty".