5761287221 has 4 divisors (see below), whose sum is σ = 5761758732. Its totient is φ = 5760815712.

The previous prime is 5761287211. The next prime is 5761287251. The reversal of 5761287221 is 1227821675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4807342225 + 953944996 = 69335^2 + 30886^2 .

It is a cyclic number.

It is not a de Polignac number, because 5761287221 - 2¹⁸ = 5761025077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5761287211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216926 + ... + 242031.

It is an arithmetic number, because the mean of its divisors is an integer number (1440439683).

Almost surely, 2^5761287221 is an apocalyptic number.

It is an amenable number.

5761287221 is a deficient number, since it is larger than the sum of its proper divisors (471511).

5761287221 is a wasteful number, since it uses less digits than its factorization.

5761287221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471510.

The product of its digits is 94080, while the sum is 41.

The square root of 5761287221 is about 75903.1436832494. The cubic root of 5761287221 is about 1792.6954201192.

The spelling of 5761287221 in words is "five billion, seven hundred sixty-one million, two hundred eighty-seven thousand, two hundred twenty-one".