561255354 has 72 divisors (see below), whose sum is σ = 1341980640. Its totient is φ = 169400880.

The previous prime is 561255353. The next prime is 561255371. The reversal of 561255354 is 453552165.

561255354 is a `hidden beast` number, since 5 + 612 + 5 + 5 + 35 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (561255353) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 955849 + ... + 956435.

It is an arithmetic number, because the mean of its divisors is an integer number (18638620).

Almost surely, 2^561255354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561255354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670990320).

561255354 is an abundant number, since it is smaller than the sum of its proper divisors (780725286).

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

561255354 is a wasteful number, since it uses less digits than its factorization.

561255354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1042 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 561255354 is about 23690.8284785484. The cubic root of 561255354 is about 824.8725136340.

The spelling of 561255354 in words is "five hundred sixty-one million, two hundred fifty-five thousand, three hundred fifty-four".