257495572 has 6 divisors (see below), whose sum is σ = 450617258. Its totient is φ = 128747784.

The previous prime is 257495569. The next prime is 257495573. The reversal of 257495572 is 275594752.

It can be written as a sum of positive squares in only one way, i.e., 183982096 + 73513476 = 13564^2 + 8574^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257495573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32186943 + ... + 32186950.

Almost surely, 2^257495572 is an apocalyptic number.

It is an amenable number.

257495572 is a deficient number, since it is larger than the sum of its proper divisors (193121686).

257495572 is a wasteful number, since it uses less digits than its factorization.

257495572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64373897 (or 64373895 counting only the distinct ones).

The product of its digits is 882000, while the sum is 46.

The square root of 257495572 is about 16046.6685639107. The cubic root of 257495572 is about 636.1945167979.

The spelling of 257495572 in words is "two hundred fifty-seven million, four hundred ninety-five thousand, five hundred seventy-two".