255387801 has 16 divisors (see below), whose sum is σ = 357168384. Its totient is φ = 162129024.

The previous prime is 255387773. The next prime is 255387809. The reversal of 255387801 is 108783552.

It is not a de Polignac number, because 255387801 - 2²¹ = 253290649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255387801.

It is not an unprimeable number, because it can be changed into a prime (255387809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19260 + ... + 29693.

It is an arithmetic number, because the mean of its divisors is an integer number (22323024).

Almost surely, 2^255387801 is an apocalyptic number.

It is an amenable number.

255387801 is a deficient number, since it is larger than the sum of its proper divisors (101780583).

255387801 is a wasteful number, since it uses less digits than its factorization.

255387801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49040.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 255387801 is about 15980.8573299432. The cubic root of 255387801 is about 634.4538681692.

The spelling of 255387801 in words is "two hundred fifty-five million, three hundred eighty-seven thousand, eight hundred one".