61241563 has 4 divisors (see below), whose sum is σ = 61265160. Its totient is φ = 61217968.

The previous prime is 61241561. The next prime is 61241581. The reversal of 61241563 is 36514216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61241563 - 2¹ = 61241561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61241561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7345 + ... + 13282.

It is an arithmetic number, because the mean of its divisors is an integer number (15316290).

Almost surely, 2^61241563 is an apocalyptic number.

61241563 is a deficient number, since it is larger than the sum of its proper divisors (23597).

61241563 is a wasteful number, since it uses less digits than its factorization.

61241563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23596.

The product of its digits is 4320, while the sum is 28.

The square root of 61241563 is about 7825.6988825280. The cubic root of 61241563 is about 394.1686579844.

Adding to 61241563 its reverse (36514216), we get a palindrome (97755779).

The spelling of 61241563 in words is "sixty-one million, two hundred forty-one thousand, five hundred sixty-three".