60561820 has 48 divisors (see below), whose sum is σ = 146911968. Its totient is φ = 20725760.

The previous prime is 60561811. The next prime is 60561847. The reversal of 60561820 is 2816506.

60561820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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, 4357 + ... + 11836.

It is an arithmetic number, because the mean of its divisors is an integer number (3060666).

Almost surely, 2^60561820 is an apocalyptic number.

It is an amenable number.

60561820 is an abundant number, since it is smaller than the sum of its proper divisors (86350148).

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

60561820 is a wasteful number, since it uses less digits than its factorization.

60561820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16230 (or 16228 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 60561820 is about 7782.1475185196. The cubic root of 60561820 is about 392.7048871466.

The spelling of 60561820 in words is "sixty million, five hundred sixty-one thousand, eight hundred twenty".