61440054 has 64 divisors (see below), whose sum is σ = 138532800. Its totient is φ = 18040320.

The previous prime is 61440037. The next prime is 61440089. The reversal of 61440054 is 45004416.

It is a congruent number.

It is an unprimeable number.

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, 175872 + ... + 176220.

It is an arithmetic number, because the mean of its divisors is an integer number (2164575).

Almost surely, 2^61440054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61440054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69266400).

61440054 is an abundant number, since it is smaller than the sum of its proper divisors (77092746).

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

61440054 is a wasteful number, since it uses less digits than its factorization.

61440054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 61440054 is about 7838.3706215004. The cubic root of 61440054 is about 394.5940474965.

It can be divided in two parts, 614400 and 54, that multiplied together give a square (33177600 = 5760²).

The spelling of 61440054 in words is "sixty-one million, four hundred forty thousand, fifty-four".