61416563 has 8 divisors (see below), whose sum is σ = 70031808. Its totient is φ = 53357184.

The previous prime is 61416541. The next prime is 61416629. The reversal of 61416563 is 36561416.

61416563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61416563 - 2²⁰ = 60367987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61416863) 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 7 ways as a sum of consecutive naturals, for example, 138731 + ... + 139172.

It is an arithmetic number, because the mean of its divisors is an integer number (8753976).

Almost surely, 2^61416563 is an apocalyptic number.

61416563 is a deficient number, since it is larger than the sum of its proper divisors (8615245).

61416563 is a wasteful number, since it uses less digits than its factorization.

61416563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277933.

The product of its digits is 12960, while the sum is 32.

The square root of 61416563 is about 7836.8720163085. The cubic root of 61416563 is about 394.5437513690.

Adding to 61416563 its reverse (36561416), we get a palindrome (97977979).

The spelling of 61416563 in words is "sixty-one million, four hundred sixteen thousand, five hundred sixty-three".