5721661275 has 48 divisors (see below), whose sum is σ = 10328231808. Its totient is φ = 2771872000.

The previous prime is 5721661271. The next prime is 5721661301.

It is a happy number.

5721661275 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5721661275 - 2² = 5721661271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5721661271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1472335 + ... + 1476215.

It is an arithmetic number, because the mean of its divisors is an integer number (215171496).

Almost surely, 2^5721661275 is an apocalyptic number.

5721661275 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5721661275 is a deficient number, since it is larger than the sum of its proper divisors (4606570533).

5721661275 is a wasteful number, since it uses less digits than its factorization.

5721661275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5687 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 5721661275 is about 75641.6636186698. The cubic root of 5721661275 is about 1788.5759274702.

The spelling of 5721661275 in words is "five billion, seven hundred twenty-one million, six hundred sixty-one thousand, two hundred seventy-five".