61163265 has 8 divisors (see below), whose sum is σ = 97861248. Its totient is φ = 32620400.

The previous prime is 61163227. The next prime is 61163273. The reversal of 61163265 is 56236116.

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

It is not a de Polignac number, because 61163265 - 2⁸ = 61163009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2038761 + ... + 2038790.

It is an arithmetic number, because the mean of its divisors is an integer number (12232656).

Almost surely, 2^61163265 is an apocalyptic number.

It is an amenable number.

61163265 is a deficient number, since it is larger than the sum of its proper divisors (36697983).

61163265 is a wasteful number, since it uses less digits than its factorization.

61163265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077559.

The product of its digits is 6480, while the sum is 30.

The square root of 61163265 is about 7820.6946622407. The cubic root of 61163265 is about 394.0006033815. Note that the first 3 decimals are identical.

The spelling of 61163265 in words is "sixty-one million, one hundred sixty-three thousand, two hundred sixty-five".