513956 has 6 divisors (see below), whose sum is σ = 899430. Its totient is φ = 256976.

The previous prime is 513943. The next prime is 513977. The reversal of 513956 is 659315.

It can be written as a sum of positive squares in only one way, i.e., 320356 + 193600 = 566^2 + 440^2 .

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 513956.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64241 + ... + 64248.

It is an arithmetic number, because the mean of its divisors is an integer number (149905).

2⁵¹³⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

513956 is a deficient number, since it is larger than the sum of its proper divisors (385474).

513956 is a wasteful number, since it uses less digits than its factorization.

513956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128493 (or 128491 counting only the distinct ones).

The product of its digits is 4050, while the sum is 29.

The square root of 513956 is about 716.9072464413. The cubic root of 513956 is about 80.1017455432.

The spelling of 513956 in words is "five hundred thirteen thousand, nine hundred fifty-six".