257150475823061 has 2 divisors, whose sum is σ = 257150475823062. Its totient is φ = 257150475823060.

The previous prime is 257150475823057. The next prime is 257150475823169. The reversal of 257150475823061 is 160328574051752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252225027980836 + 4925447842225 = 15881594^2 + 2219335^2 .

It is a cyclic number.

It is not a de Polignac number, because 257150475823061 - 2² = 257150475823057 is a prime.

It is a super-2 number, since 2×257150475823061² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257150475822988 and 257150475823006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257150475823861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128575237911530 + 128575237911531.

It is an arithmetic number, because the mean of its divisors is an integer number (128575237911531).

Almost surely, 2^{257150475823061} is an apocalyptic number.

It is an amenable number.

257150475823061 is a deficient number, since it is larger than the sum of its proper divisors (1).

257150475823061 is an equidigital number, since it uses as much as digits as its factorization.

257150475823061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 257150475823061 in words is "two hundred fifty-seven trillion, one hundred fifty billion, four hundred seventy-five million, eight hundred twenty-three thousand, sixty-one".