61054661 has 8 divisors (see below), whose sum is σ = 61585920. Its totient is φ = 60526192.

The previous prime is 61054649. The next prime is 61054663. The reversal of 61054661 is 16645016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61054661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61054663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70316 + ... + 71178.

It is an arithmetic number, because the mean of its divisors is an integer number (7698240).

Almost surely, 2^61054661 is an apocalyptic number.

It is an amenable number.

61054661 is a deficient number, since it is larger than the sum of its proper divisors (531259).

61054661 is a wasteful number, since it uses less digits than its factorization.

61054661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61054661 is about 7813.7482042871. The cubic root of 61054661 is about 393.7672640117.

Adding to 61054661 its reverse (16645016), we get a palindrome (77699677).

The spelling of 61054661 in words is "sixty-one million, fifty-four thousand, six hundred sixty-one".