1561560532 has 12 divisors (see below), whose sum is σ = 3123121120. Its totient is φ = 669240216.

The previous prime is 1561560529. The next prime is 1561560557. The reversal of 1561560532 is 2350651651.

1561560532 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27884982 + ... + 27885037.

Almost surely, 2^1561560532 is an apocalyptic number.

It is an amenable number.

1561560532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1561560532 is a wasteful number, since it uses less digits than its factorization.

1561560532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55770030 (or 55770028 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1561560532 is about 39516.5855306351. The cubic root of 1561560532 is about 1160.1645951538.

The spelling of 1561560532 in words is "one billion, five hundred sixty-one million, five hundred sixty thousand, five hundred thirty-two".