561528132 has 48 divisors (see below), whose sum is σ = 1467988032. Its totient is φ = 165559680.

The previous prime is 561528127. The next prime is 561528133. The reversal of 561528132 is 231825165.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 561528093 and 561528102.

It is not an unprimeable number, because it can be changed into a prime (561528133) 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, 52603 + ... + 62370.

It is an arithmetic number, because the mean of its divisors is an integer number (30583084).

Almost surely, 2^561528132 is an apocalyptic number.

It is an amenable number.

561528132 is an abundant number, since it is smaller than the sum of its proper divisors (906459900).

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

561528132 is a wasteful number, since it uses less digits than its factorization.

561528132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115028 (or 115026 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 561528132 is about 23696.5848172263. The cubic root of 561528132 is about 825.0061252070.

The spelling of 561528132 in words is "five hundred sixty-one million, five hundred twenty-eight thousand, one hundred thirty-two".