255101861 has 8 divisors (see below), whose sum is σ = 294432384. Its totient is φ = 216493200.

The previous prime is 255101849. The next prime is 255101863. The reversal of 255101861 is 168101552.

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

It is not a de Polignac number, because 255101861 - 2⁶ = 255101797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255101863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179705 + ... + 181118.

It is an arithmetic number, because the mean of its divisors is an integer number (36804048).

Almost surely, 2^255101861 is an apocalyptic number.

It is an amenable number.

255101861 is a deficient number, since it is larger than the sum of its proper divisors (39330523).

255101861 is a wasteful number, since it uses less digits than its factorization.

255101861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360931.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 255101861 is about 15971.9084958561. The cubic root of 255101861 is about 634.2169950862.

The spelling of 255101861 in words is "two hundred fifty-five million, one hundred one thousand, eight hundred sixty-one".