254540505 has 16 divisors (see below), whose sum is σ = 417199104. Its totient is φ = 132443520.

The previous prime is 254540477. The next prime is 254540519. The reversal of 254540505 is 505045452.

It is not a de Polignac number, because 254540505 - 2⁶ = 254540441 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206329 + ... + 207558.

It is an arithmetic number, because the mean of its divisors is an integer number (26074944).

Almost surely, 2^254540505 is an apocalyptic number.

It is an amenable number.

254540505 is a deficient number, since it is larger than the sum of its proper divisors (162658599).

254540505 is a wasteful number, since it uses less digits than its factorization.

254540505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413936.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 254540505 is about 15954.3255890056. The cubic root of 254540505 is about 633.7514516654.

Adding to 254540505 its reverse (505045452), we get a palindrome (759585957).

The spelling of 254540505 in words is "two hundred fifty-four million, five hundred forty thousand, five hundred five".