257926552 has 16 divisors (see below), whose sum is σ = 520813440. Its totient is φ = 119042976.

The previous prime is 257926549. The next prime is 257926637. The reversal of 257926552 is 255629752.

It is a super-2 number, since 2×257926552² = 133052212453217408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257926499 and 257926508.

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, 1239928 + ... + 1240135.

It is an arithmetic number, because the mean of its divisors is an integer number (32550840).

Almost surely, 2^257926552 is an apocalyptic number.

It is an amenable number.

257926552 is an abundant number, since it is smaller than the sum of its proper divisors (262886888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257926552 is a wasteful number, since it uses less digits than its factorization.

257926552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480082 (or 2480078 counting only the distinct ones).

The product of its digits is 378000, while the sum is 43.

The square root of 257926552 is about 16060.0919050920. The cubic root of 257926552 is about 636.5492598334.

The spelling of 257926552 in words is "two hundred fifty-seven million, nine hundred twenty-six thousand, five hundred fifty-two".