2721256532 has 24 divisors (see below), whose sum is σ = 5014615200. Its totient is φ = 1288560096.

The previous prime is 2721256507. The next prime is 2721256537. The reversal of 2721256532 is 2356521272.

It is a super-2 number, since 2×2721256532² = 14810474225905334048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2721256492 and 2721256501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721256537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319019 + ... + 327437.

It is an arithmetic number, because the mean of its divisors is an integer number (208942300).

Almost surely, 2^2721256532 is an apocalyptic number.

It is an amenable number.

2721256532 is a deficient number, since it is larger than the sum of its proper divisors (2293358668).

2721256532 is a wasteful number, since it uses less digits than its factorization.

2721256532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695 (or 12693 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 2721256532 is about 52165.6643013391. The cubic root of 2721256532 is about 1396.1213274025.

The spelling of 2721256532 in words is "two billion, seven hundred twenty-one million, two hundred fifty-six thousand, five hundred thirty-two".