5561845254 has 144 divisors (see below), whose sum is σ = 14518039536. Its totient is φ = 1533168000.

The previous prime is 5561845231. The next prime is 5561845259. The reversal of 5561845254 is 4525481655.

5561845254 is a `hidden beast` number, since 5 + 5 + 618 + 4 + 5 + 25 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561845259) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4274404 + ... + 4275704.

It is an arithmetic number, because the mean of its divisors is an integer number (100819719).

Almost surely, 2^5561845254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561845254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7259019768).

5561845254 is an abundant number, since it is smaller than the sum of its proper divisors (8956194282).

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

5561845254 is a wasteful number, since it uses less digits than its factorization.

5561845254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1481 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

The square root of 5561845254 is about 74577.7798945504. The cubic root of 5561845254 is about 1771.7657434232.

The spelling of 5561845254 in words is "five billion, five hundred sixty-one million, eight hundred forty-five thousand, two hundred fifty-four".