61098528 has 144 divisors (see below), whose sum is σ = 177430176. Its totient is φ = 18385920.

The previous prime is 61098523. The next prime is 61098529. The reversal of 61098528 is 82589016.

It is not an unprimeable number, because it can be changed into a prime (61098523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1420875 + ... + 1420917.

It is an arithmetic number, because the mean of its divisors is an integer number (1232154).

Almost surely, 2^61098528 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 61098528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88715088).

61098528 is an abundant number, since it is smaller than the sum of its proper divisors (116331648).

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

61098528 is a wasteful number, since it uses less digits than its factorization.

61098528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 61098528 is about 7816.5547397815. The cubic root of 61098528 is about 393.8615470308.

The spelling of 61098528 in words is "sixty-one million, ninety-eight thousand, five hundred twenty-eight".