61305883 has 4 divisors (see below), whose sum is σ = 61337320. Its totient is φ = 61274448.

The previous prime is 61305877. The next prime is 61305887. The reversal of 61305883 is 38850316.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61305883 is a prime.

It is a super-2 number, since 2×61305883² = 7516822580819378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61305887) 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, 12585 + ... + 16762.

It is an arithmetic number, because the mean of its divisors is an integer number (15334330).

Almost surely, 2^61305883 is an apocalyptic number.

61305883 is a deficient number, since it is larger than the sum of its proper divisors (31437).

61305883 is a wasteful number, since it uses less digits than its factorization.

61305883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31436.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 61305883 is about 7829.8073411802. The cubic root of 61305883 is about 394.3066038294.

The spelling of 61305883 in words is "sixty-one million, three hundred five thousand, eight hundred eighty-three".