257025301017 has 16 divisors (see below), whose sum is σ = 347205335040. Its totient is φ = 169099821072.

The previous prime is 257025301007. The next prime is 257025301081. The reversal of 257025301017 is 710103520752.

It is a happy number.

It is not a de Polignac number, because 257025301017 - 2⁶ = 257025300953 is a prime.

It is a super-2 number, since 2×257025301017² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257025301007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234798 + ... + 754440.

It is an arithmetic number, because the mean of its divisors is an integer number (21700333440).

Almost surely, 2^257025301017 is an apocalyptic number.

It is an amenable number.

257025301017 is a deficient number, since it is larger than the sum of its proper divisors (90180034023).

257025301017 is a wasteful number, since it uses less digits than its factorization.

257025301017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521812.

The product of its (nonzero) digits is 14700, while the sum is 33.

Adding to 257025301017 its reverse (710103520752), we get a palindrome (967128821769).

The spelling of 257025301017 in words is "two hundred fifty-seven billion, twenty-five million, three hundred one thousand, seventeen".