2252655640 has 32 divisors (see below), whose sum is σ = 5069952000. Its totient is φ = 900799744.

The previous prime is 2252655631. The next prime is 2252655653. The reversal of 2252655640 is 465562522.

It is a self number, because there is not a number n which added to its sum of digits gives 2252655640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189801 + ... + 201319.

It is an arithmetic number, because the mean of its divisors is an integer number (158436000).

Almost surely, 2^2252655640 is an apocalyptic number.

2252655640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2252655640 is an abundant number, since it is smaller than the sum of its proper divisors (2817296360).

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

2252655640 is a wasteful number, since it uses less digits than its factorization.

2252655640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419 (or 16415 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 2252655640 is about 47462.1495509843. The cubic root of 2252655640 is about 1310.8860311274.

The spelling of 2252655640 in words is "two billion, two hundred fifty-two million, six hundred fifty-five thousand, six hundred forty".