257065226552 has 16 divisors (see below), whose sum is σ = 482010779160. Its totient is φ = 128529018784.

The previous prime is 257065226543. The next prime is 257065226633. The reversal of 257065226552 is 255622560752.

It is a junction number, because it is equal to n+sod(n) for n = 257065226497 and 257065226506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132203 + ... + 729114.

Almost surely, 2^257065226552 is an apocalyptic number.

It is an amenable number.

257065226552 is a deficient number, since it is larger than the sum of its proper divisors (224945552608).

257065226552 is a wasteful number, since it uses less digits than its factorization.

257065226552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898630 (or 898626 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 257065226552 in words is "two hundred fifty-seven billion, sixty-five million, two hundred twenty-six thousand, five hundred fifty-two".