255100407 has 4 divisors (see below), whose sum is σ = 340133880. Its totient is φ = 170066936.

The previous prime is 255100393. The next prime is 255100427. The reversal of 255100407 is 704001552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255100407 - 2¹² = 255096311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255100427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42516732 + ... + 42516737.

It is an arithmetic number, because the mean of its divisors is an integer number (85033470).

Almost surely, 2^255100407 is an apocalyptic number.

255100407 is a deficient number, since it is larger than the sum of its proper divisors (85033473).

255100407 is an equidigital number, since it uses as much as digits as its factorization.

255100407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85033472.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 255100407 is about 15971.8629783754. The cubic root of 255100407 is about 634.2157901384.

Adding to 255100407 its reverse (704001552), we get a palindrome (959101959).

The spelling of 255100407 in words is "two hundred fifty-five million, one hundred thousand, four hundred seven".