256052170037 has 2 divisors, whose sum is σ = 256052170038. Its totient is φ = 256052170036.

The previous prime is 256052169983. The next prime is 256052170043. The reversal of 256052170037 is 730071250652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253815447601 + 2236722436 = 503801^2 + 47294^2 .

It is a cyclic number.

It is not a de Polignac number, because 256052170037 - 2⁶ = 256052169973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256052170637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128026085018 + 128026085019.

It is an arithmetic number, because the mean of its divisors is an integer number (128026085019).

Almost surely, 2^256052170037 is an apocalyptic number.

It is an amenable number.

256052170037 is a deficient number, since it is larger than the sum of its proper divisors (1).

256052170037 is an equidigital number, since it uses as much as digits as its factorization.

256052170037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 256052170037 in words is "two hundred fifty-six billion, fifty-two million, one hundred seventy thousand, thirty-seven".