561058240 has 56 divisors (see below), whose sum is σ = 1340309232. Its totient is φ = 223703040.

The previous prime is 561058231. The next prime is 561058283. The reversal of 561058240 is 42850165.

It is a congruent number.

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, 103272 + ... + 108568.

Almost surely, 2^561058240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561058240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670154616).

561058240 is an abundant number, since it is smaller than the sum of its proper divisors (779250992).

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

561058240 is a wasteful number, since it uses less digits than its factorization.

561058240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 561058240 is about 23686.6679801107. The cubic root of 561058240 is about 824.7759367030.

The spelling of 561058240 in words is "five hundred sixty-one million, fifty-eight thousand, two hundred forty".