257533003053 has 6 divisors (see below), whose sum is σ = 371992115534. Its totient is φ = 171688668696.

The previous prime is 257533002989. The next prime is 257533003067. The reversal of 257533003053 is 350300335752.

257533003053 is a `hidden beast` number, since 2 + 575 + 3 + 3 + 0 + 0 + 30 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 200920890564 + 56612112489 = 448242^2 + 237933^2 .

It is not a de Polignac number, because 257533003053 - 2⁶ = 257533002989 is a prime.

It is a super-2 number, since 2×257533003053² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257533002999 and 257533003017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257533003073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14307389050 + ... + 14307389067.

Almost surely, 2^257533003053 is an apocalyptic number.

It is an amenable number.

257533003053 is a deficient number, since it is larger than the sum of its proper divisors (114459112481).

257533003053 is a wasteful number, since it uses less digits than its factorization.

257533003053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28614778123 (or 28614778120 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 36.

The spelling of 257533003053 in words is "two hundred fifty-seven billion, five hundred thirty-three million, three thousand, fifty-three".