257365052 has 18 divisors (see below), whose sum is σ = 523922112. Its totient is φ = 110299224.

The previous prime is 257365037. The next prime is 257365063. The reversal of 257365052 is 250563752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656348 + ... + 656739.

It is an arithmetic number, because the mean of its divisors is an integer number (29106784).

Almost surely, 2^257365052 is an apocalyptic number.

It is an amenable number.

257365052 is an abundant number, since it is smaller than the sum of its proper divisors (266557060).

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

257365052 is a wasteful number, since it uses less digits than its factorization.

257365052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313105 (or 1313096 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 257365052 is about 16042.6011606597. The cubic root of 257365052 is about 636.0870066745.

The spelling of 257365052 in words is "two hundred fifty-seven million, three hundred sixty-five thousand, fifty-two".