561126432 has 48 divisors (see below), whose sum is σ = 1476468000. Its totient is φ = 186596352.

The previous prime is 561126427. The next prime is 561126491. The reversal of 561126432 is 234621165.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 561126432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34819 + ... + 48317.

It is an arithmetic number, because the mean of its divisors is an integer number (30759750).

Almost surely, 2^561126432 is an apocalyptic number.

It is an amenable number.

561126432 is an abundant number, since it is smaller than the sum of its proper divisors (915341568).

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

561126432 is a wasteful number, since it uses less digits than its factorization.

561126432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945 (or 13937 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 561126432 is about 23688.1073959065. The cubic root of 561126432 is about 824.8093502527.

Adding to 561126432 its reverse (234621165), we get a palindrome (795747597).

The spelling of 561126432 in words is "five hundred sixty-one million, one hundred twenty-six thousand, four hundred thirty-two".