61850 has 12 divisors (see below), whose sum is σ = 115134. Its totient is φ = 24720.

The previous prime is 61843. The next prime is 61861. The reversal of 61850 is 5816.

It can be written as a sum of positive squares in 3 ways, for example, as 52441 + 9409 = 229^2 + 97^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 61850.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569 + ... + 668.

2⁶¹⁸⁵⁰ is an apocalyptic number.

61850 is a deficient number, since it is larger than the sum of its proper divisors (53284).

61850 is a wasteful number, since it uses less digits than its factorization.

61850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 61850 is about 248.6966023089. The cubic root of 61850 is about 39.5469718407.

The spelling of 61850 in words is "sixty-one thousand, eight hundred fifty".