61905060 has 240 divisors, whose sum is σ = 228324096. Its totient is φ = 13747968.

The previous prime is 61905001. The next prime is 61905061. The reversal of 61905060 is 6050916.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61905061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 600969 + ... + 601071.

Almost surely, 2^61905060 is an apocalyptic number.

61905060 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 61905060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114162048).

61905060 is an abundant number, since it is smaller than the sum of its proper divisors (166419036).

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

61905060 is a wasteful number, since it uses less digits than its factorization.

61905060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 61905060 is about 7867.9768682934. The cubic root of 61905060 is about 395.5870350578.

Adding to 61905060 its reverse (6050916), we get a palindrome (67955976).

The spelling of 61905060 in words is "sixty-one million, nine hundred five thousand, sixty".