2005532540 has 48 divisors (see below), whose sum is σ = 4602092544. Its totient is φ = 728078400.

The previous prime is 2005532539. The next prime is 2005532549. The reversal of 2005532540 is 452355002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005532549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131597 + ... + 146043.

It is an arithmetic number, because the mean of its divisors is an integer number (95876928).

Almost surely, 2^2005532540 is an apocalyptic number.

2005532540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005532540 is an abundant number, since it is smaller than the sum of its proper divisors (2596560004).

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

2005532540 is a wasteful number, since it uses less digits than its factorization.

2005532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098 (or 15096 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 2005532540 is about 44783.1725093254. The cubic root of 2005532540 is about 1261.0817408912.

Adding to 2005532540 its reverse (452355002), we get a palindrome (2457887542).

The spelling of 2005532540 in words is "two billion, five million, five hundred thirty-two thousand, five hundred forty".