61895 has 4 divisors (see below), whose sum is σ = 74280. Its totient is φ = 49512.

The previous prime is 61879. The next prime is 61909. The reversal of 61895 is 59816.

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 61895 - 2⁴ = 61879 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6185 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (18570).

2⁶¹⁸⁹⁵ is an apocalyptic number.

61895 is a deficient number, since it is larger than the sum of its proper divisors (12385).

61895 is a wasteful number, since it uses less digits than its factorization.

61895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384.

The product of its digits is 2160, while the sum is 29.

The square root of 61895 is about 248.7870575412. The cubic root of 61895 is about 39.5565605355.

The spelling of 61895 in words is "sixty-one thousand, eight hundred ninety-five".