255504145 has 16 divisors (see below), whose sum is σ = 331591680. Its totient is φ = 187879104.

The previous prime is 255504133. The next prime is 255504199. The reversal of 255504145 is 541405552.

It is a cyclic number.

It is not a de Polignac number, because 255504145 - 2¹⁷ = 255373073 is a prime.

It is a super-2 number, since 2×255504145² = 130564736224362050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7312 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (20724480).

Almost surely, 2^255504145 is an apocalyptic number.

It is an amenable number.

255504145 is a deficient number, since it is larger than the sum of its proper divisors (76087535).

255504145 is a wasteful number, since it uses less digits than its factorization.

255504145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16704.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 255504145 is about 15984.4970205509. The cubic root of 255504145 is about 634.5501970912.

Adding to 255504145 its reverse (541405552), we get a palindrome (796909697).

The spelling of 255504145 in words is "two hundred fifty-five million, five hundred four thousand, one hundred forty-five".