2253617720 has 32 divisors (see below), whose sum is σ = 5072451120. Its totient is φ = 901125120.

The previous prime is 2253617713. The next prime is 2253617731. The reversal of 2253617720 is 277163522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126059 + ... + 142821.

Almost surely, 2^2253617720 is an apocalyptic number.

2253617720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2253617720 is an abundant number, since it is smaller than the sum of its proper divisors (2818833400).

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

2253617720 is a wasteful number, since it uses less digits than its factorization.

2253617720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135 (or 20131 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 2253617720 is about 47472.2837032305. The cubic root of 2253617720 is about 1311.0726253719.

The spelling of 2253617720 in words is "two billion, two hundred fifty-three million, six hundred seventeen thousand, seven hundred twenty".