257057553541426 has 32 divisors (see below), whose sum is σ = 435151539144000. Its totient is φ = 112813388815680.

The previous prime is 257057553541423. The next prime is 257057553541447. The reversal of 257057553541426 is 624145355750752.

It is a super-2 number, since 2×257057553541426² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257057553541423) 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, 36271501 + ... + 42775423.

It is an arithmetic number, because the mean of its divisors is an integer number (13598485598250).

Almost surely, 2^{257057553541426} is an apocalyptic number.

257057553541426 is a deficient number, since it is larger than the sum of its proper divisors (178093985602574).

257057553541426 is a wasteful number, since it uses less digits than its factorization.

257057553541426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565914.

The product of its (nonzero) digits is 176400000, while the sum is 61.

The spelling of 257057553541426 in words is "two hundred fifty-seven trillion, fifty-seven billion, five hundred fifty-three million, five hundred forty-one thousand, four hundred twenty-six".