15560461 has 16 divisors (see below), whose sum is σ = 18536704. Its totient is φ = 12783744.

The previous prime is 15560459. The next prime is 15560471. The reversal of 15560461 is 16406551.

It is a 4-Lehmer number, since φ(15560461) divides (15560461-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 15560461 - 2¹ = 15560459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15560471) 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, 18496 + ... + 19318.

It is an arithmetic number, because the mean of its divisors is an integer number (1158544).

It is a Poulet number, since it divides 2^15560460-1.

Almost surely, 2^15560461 is an apocalyptic number.

It is an amenable number.

15560461 is a deficient number, since it is larger than the sum of its proper divisors (2976243).

15560461 is an equidigital number, since it uses as much as digits as its factorization.

15560461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 15560461 is about 3944.6750183000. The cubic root of 15560461 is about 249.6553169929.

The spelling of 15560461 in words is "fifteen million, five hundred sixty thousand, four hundred sixty-one".