61055250 has 64 divisors (see below), whose sum is σ = 153833472. Its totient is φ = 16128000.

The previous prime is 61055249. The next prime is 61055257. The reversal of 61055250 is 5255016.

It is a self number, because there is not a number n which added to its sum of digits gives 61055250.

It is not an unprimeable number, because it can be changed into a prime (61055257) 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 31 ways as a sum of consecutive naturals, for example, 94930 + ... + 95570.

It is an arithmetic number, because the mean of its divisors is an integer number (2403648).

Almost surely, 2^61055250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61055250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76916736).

61055250 is an abundant number, since it is smaller than the sum of its proper divisors (92778222).

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

61055250 is a wasteful number, since it uses less digits than its factorization.

61055250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 61055250 is about 7813.7858941745. The cubic root of 61055250 is about 393.7685302441.

The spelling of 61055250 in words is "sixty-one million, fifty-five thousand, two hundred fifty".