61853313 has 4 divisors (see below), whose sum is σ = 82471088. Its totient is φ = 41235540.

The previous prime is 61853273. The next prime is 61853321. The reversal of 61853313 is 31335816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61853313 - 2⁹ = 61852801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61853333) 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, 10308883 + ... + 10308888.

It is an arithmetic number, because the mean of its divisors is an integer number (20617772).

Almost surely, 2^61853313 is an apocalyptic number.

It is an amenable number.

61853313 is a deficient number, since it is larger than the sum of its proper divisors (20617775).

61853313 is a wasteful number, since it uses less digits than its factorization.

61853313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20617774.

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

The square root of 61853313 is about 7864.6877242520. The cubic root of 61853313 is about 395.4767794030.

The spelling of 61853313 in words is "sixty-one million, eight hundred fifty-three thousand, three hundred thirteen".