256300504134544 has 45 divisors (see below), whose sum is σ = 501029795204913. Its totient is φ = 127012592937216.

The previous prime is 256300504134541. The next prime is 256300504134583. The reversal of 256300504134544 is 445431405003652.

The square root of 256300504134544 is 16009388.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4516220019600 + 251784284114944 = 2125140^2 + 15867712^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256300504134494 and 256300504134503.

It is not an unprimeable number, because it can be changed into a prime (256300504134541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7236225667 + ... + 7236261085.

Almost surely, 2^{256300504134544} is an apocalyptic number.

256300504134544 is the 16009388-th square number.

It is an amenable number.

256300504134544 is a deficient number, since it is larger than the sum of its proper divisors (244729291070369).

256300504134544 is an frugal number, since it uses more digits than its factorization.

256300504134544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71072 (or 35534 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 46.

The spelling of 256300504134544 in words is "two hundred fifty-six trillion, three hundred billion, five hundred four million, one hundred thirty-four thousand, five hundred forty-four".