61611063 has 4 divisors (see below), whose sum is σ = 82148088. Its totient is φ = 41074040.

The previous prime is 61611059. The next prime is 61611083. The reversal of 61611063 is 36011616.

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 61611063 - 2² = 61611059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61611023) 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, 10268508 + ... + 10268513.

It is an arithmetic number, because the mean of its divisors is an integer number (20537022).

Almost surely, 2^61611063 is an apocalyptic number.

61611063 is a deficient number, since it is larger than the sum of its proper divisors (20537025).

61611063 is a wasteful number, since it uses less digits than its factorization.

61611063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537024.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61611063 is about 7849.2714948586. The cubic root of 61611063 is about 394.9598057696.

Adding to 61611063 its reverse (36011616), we get a palindrome (97622679).

The spelling of 61611063 in words is "sixty-one million, six hundred eleven thousand, sixty-three".