255601651 has 8 divisors (see below), whose sum is σ = 265322304. Its totient is φ = 246059520.

The previous prime is 255601649. The next prime is 255601711. The reversal of 255601651 is 156106552.

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

It is a cyclic number.

It is not a de Polignac number, because 255601651 - 2¹ = 255601649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255601601) 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, 41710 + ... + 47443.

It is an arithmetic number, because the mean of its divisors is an integer number (33165288).

Almost surely, 2^255601651 is an apocalyptic number.

255601651 is a deficient number, since it is larger than the sum of its proper divisors (9720653).

255601651 is an equidigital number, since it uses as much as digits as its factorization.

255601651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89261.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 255601651 is about 15987.5467473906. The cubic root of 255601651 is about 634.6309062614.

The spelling of 255601651 in words is "two hundred fifty-five million, six hundred one thousand, six hundred fifty-one".