257536852 has 12 divisors (see below), whose sum is σ = 450860256. Its totient is φ = 128719640.

The previous prime is 257536841. The next prime is 257536861. The reversal of 257536852 is 258635752.

It is a junction number, because it is equal to n+sod(n) for n = 257536799 and 257536808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353 + ... + 22735.

It is an arithmetic number, because the mean of its divisors is an integer number (37571688).

Almost surely, 2^257536852 is an apocalyptic number.

It is an amenable number.

257536852 is a deficient number, since it is larger than the sum of its proper divisors (193323404).

257536852 is a wasteful number, since it uses less digits than its factorization.

257536852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24398 (or 24396 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 257536852 is about 16047.9547606541. The cubic root of 257536852 is about 636.2285118244.

Adding to 257536852 its product of digits (504000), we get a palindrome (258040852).

The spelling of 257536852 in words is "two hundred fifty-seven million, five hundred thirty-six thousand, eight hundred fifty-two".