2751243521 has 16 divisors (see below), whose sum is σ = 3141132288. Its totient is φ = 2391249600.

The previous prime is 2751243511. The next prime is 2751243553. The reversal of 2751243521 is 1253421572.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2751243521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2751243511) 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, 77345 + ... + 107166.

It is an arithmetic number, because the mean of its divisors is an integer number (196320768).

Almost surely, 2^2751243521 is an apocalyptic number.

It is an amenable number.

2751243521 is a deficient number, since it is larger than the sum of its proper divisors (389888767).

2751243521 is a wasteful number, since it uses less digits than its factorization.

2751243521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184592.

The product of its digits is 16800, while the sum is 32.

The square root of 2751243521 is about 52452.2975759880. The cubic root of 2751243521 is about 1401.2308089447.

The spelling of 2751243521 in words is "two billion, seven hundred fifty-one million, two hundred forty-three thousand, five hundred twenty-one".