256373545 has 16 divisors (see below), whose sum is σ = 317122560. Its totient is φ = 198878400.

The previous prime is 256373539. The next prime is 256373563. The reversal of 256373545 is 545373652.

It is not a de Polignac number, because 256373545 - 2⁷ = 256373417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256373498 and 256373507.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15736 + ... + 27574.

It is an arithmetic number, because the mean of its divisors is an integer number (19820160).

Almost surely, 2^256373545 is an apocalyptic number.

It is an amenable number.

256373545 is a deficient number, since it is larger than the sum of its proper divisors (60749015).

256373545 is a wasteful number, since it uses less digits than its factorization.

256373545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976.

The product of its digits is 378000, while the sum is 40.

The square root of 256373545 is about 16011.6690260572. The cubic root of 256373545 is about 635.2691070107.

The spelling of 256373545 in words is "two hundred fifty-six million, three hundred seventy-three thousand, five hundred forty-five".