60561620 has 48 divisors (see below), whose sum is σ = 146821248. Its totient is φ = 20553600.

The previous prime is 60561617. The next prime is 60561629. The reversal of 60561620 is 2616506.

It is a self number, because there is not a number n which added to its sum of digits gives 60561620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60561629) 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, 11999 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (3058776).

Almost surely, 2^60561620 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 60561620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73410624).

60561620 is an abundant number, since it is smaller than the sum of its proper divisors (86259628).

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

60561620 is a wasteful number, since it uses less digits than its factorization.

60561620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400 (or 4398 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 60561620 is about 7782.1346685855. The cubic root of 60561620 is about 392.7044548552.

The spelling of 60561620 in words is "sixty million, five hundred sixty-one thousand, six hundred twenty".