61060620 has 48 divisors (see below), whose sum is σ = 172585728. Its totient is φ = 16128960.

The previous prime is 61060553. The next prime is 61060621. The reversal of 61060620 is 2606016.

61060620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61060621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 11175.

It is an arithmetic number, because the mean of its divisors is an integer number (3595536).

Almost surely, 2^61060620 is an apocalyptic number.

61060620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61060620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86292864).

61060620 is an abundant number, since it is smaller than the sum of its proper divisors (111525108).

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

61060620 is a wasteful number, since it uses less digits than its factorization.

61060620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9630 (or 9628 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61060620 is about 7814.1295100606. The cubic root of 61060620 is about 393.7800742965.

Adding to 61060620 its reverse (2606016), we get a palindrome (63666636).

The spelling of 61060620 in words is "sixty-one million, sixty thousand, six hundred twenty".