61010544 has 80 divisors (see below), whose sum is σ = 181916928. Its totient is φ = 17258496.

The previous prime is 61010531. The next prime is 61010549. The reversal of 61010544 is 44501016.

61010544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 61010544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010549) by changing a digit.

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, 35104 + ... + 36800.

Almost surely, 2^61010544 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 61010544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90958464).

61010544 is an abundant number, since it is smaller than the sum of its proper divisors (120906384).

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

61010544 is a wasteful number, since it uses less digits than its factorization.

61010544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61010544 is about 7810.9246571709. The cubic root of 61010544 is about 393.6723981108.

The spelling of 61010544 in words is "sixty-one million, ten thousand, five hundred forty-four".