61052004560 has 80 divisors (see below), whose sum is σ = 144287015040. Its totient is φ = 24020620800.

The previous prime is 61052004527. The next prime is 61052004569. The reversal of 61052004560 is 6540025016.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61052004569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500485 + ... + 1540635.

It is an arithmetic number, because the mean of its divisors is an integer number (1803587688).

Almost surely, 2^61052004560 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 61052004560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72143507520).

61052004560 is an abundant number, since it is smaller than the sum of its proper divisors (83235010480).

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

61052004560 is a wasteful number, since it uses less digits than its factorization.

61052004560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40476 (or 40470 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 61052004560 its reverse (6540025016), we get a palindrome (67592029576).

The spelling of 61052004560 in words is "sixty-one billion, fifty-two million, four thousand, five hundred sixty".