255101001 has 8 divisors (see below), whose sum is σ = 342582240. Its totient is φ = 168843552.

The previous prime is 255100999. The next prime is 255101009. The reversal of 255101001 is 100101552.

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

It is not a de Polignac number, because 255101001 - 2¹ = 255100999 is a prime.

It is a super-2 number, since 2×255101001² = 130153041422404002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255101009) 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, 305460 + ... + 306293.

It is an arithmetic number, because the mean of its divisors is an integer number (42822780).

Almost surely, 2^255101001 is an apocalyptic number.

It is an amenable number.

255101001 is a deficient number, since it is larger than the sum of its proper divisors (87481239).

255101001 is a wasteful number, since it uses less digits than its factorization.

255101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611895.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 255101001 is about 15971.8815735655. The cubic root of 255101001 is about 634.2162823941.

Adding to 255101001 its reverse (100101552), we get a palindrome (355202553).

The spelling of 255101001 in words is "two hundred fifty-five million, one hundred one thousand, one".