61250784 has 144 divisors (see below), whose sum is σ = 193914000. Its totient is φ = 16859136.

The previous prime is 61250731. The next prime is 61250801. The reversal of 61250784 is 48705216.

61250784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61250784² = 7503317081229312, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 136192 + ... + 136640.

It is an arithmetic number, because the mean of its divisors is an integer number (1346625).

Almost surely, 2^61250784 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 61250784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96957000).

61250784 is an abundant number, since it is smaller than the sum of its proper divisors (132663216).

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

61250784 is a wasteful number, since it uses less digits than its factorization.

61250784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 61250784 is about 7826.2880090117. The cubic root of 61250784 is about 394.1884400116.

The spelling of 61250784 in words is "sixty-one million, two hundred fifty thousand, seven hundred eighty-four".