5715561 has 16 divisors (see below), whose sum is σ = 8078400. Its totient is φ = 3584448.

The previous prime is 5715557. The next prime is 5715583. The reversal of 5715561 is 1655175.

It is not a de Polignac number, because 5715561 - 2² = 5715557 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5715461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10975 + ... + 11483.

It is an arithmetic number, because the mean of its divisors is an integer number (504900).

Almost surely, 2^5715561 is an apocalyptic number.

It is an amenable number.

5715561 is a deficient number, since it is larger than the sum of its proper divisors (2362839).

5715561 is a wasteful number, since it uses less digits than its factorization.

5715561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its digits is 5250, while the sum is 30.

The square root of 5715561 is about 2390.7239489326. The cubic root of 5715561 is about 178.7940058248.

The spelling of 5715561 in words is "five million, seven hundred fifteen thousand, five hundred sixty-one".