255100403 has 4 divisors (see below), whose sum is σ = 268526760. Its totient is φ = 241674048.

The previous prime is 255100393. The next prime is 255100427. The reversal of 255100403 is 304001552.

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 255100403 - 2²⁶ = 187991539 is a prime.

It is a super-2 number, since 2×255100403² = 130152431221524818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255100493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713150 + ... + 6713187.

It is an arithmetic number, because the mean of its divisors is an integer number (67131690).

Almost surely, 2^255100403 is an apocalyptic number.

255100403 is a deficient number, since it is larger than the sum of its proper divisors (13426357).

255100403 is a wasteful number, since it uses less digits than its factorization.

255100403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426356.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 255100403 is about 15971.8628531552. The cubic root of 255100403 is about 634.2157868235.

Adding to 255100403 its reverse (304001552), we get a palindrome (559101955).

The spelling of 255100403 in words is "two hundred fifty-five million, one hundred thousand, four hundred three".