257263272052 has 6 divisors (see below), whose sum is σ = 450210726098. Its totient is φ = 128631636024.

The previous prime is 257263272011. The next prime is 257263272083. The reversal of 257263272052 is 250272362752.

It can be written as a sum of positive squares in only one way, i.e., 202505400036 + 54757872016 = 450006^2 + 234004^2 .

It is a super-2 number, since 2×257263272052² (a number of 24 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 32157909003 + ... + 32157909010.

Almost surely, 2^257263272052 is an apocalyptic number.

It is an amenable number.

257263272052 is a deficient number, since it is larger than the sum of its proper divisors (192947454046).

257263272052 is a wasteful number, since it uses less digits than its factorization.

257263272052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64315818017 (or 64315818015 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 257263272052 in words is "two hundred fifty-seven billion, two hundred sixty-three million, two hundred seventy-two thousand, fifty-two".