257572454453 has 2 divisors, whose sum is σ = 257572454454. Its totient is φ = 257572454452.

The previous prime is 257572454431. The next prime is 257572454471. The reversal of 257572454453 is 354454275752.

It is a happy number.

257572454453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219059569444 + 38512885009 = 468038^2 + 196247^2 .

It is a cyclic number.

It is not a de Polignac number, because 257572454453 - 2¹⁶ = 257572388917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257572454395 and 257572454404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257572454413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128786227226 + 128786227227.

It is an arithmetic number, because the mean of its divisors is an integer number (128786227227).

Almost surely, 2^257572454453 is an apocalyptic number.

It is an amenable number.

257572454453 is a deficient number, since it is larger than the sum of its proper divisors (1).

257572454453 is an equidigital number, since it uses as much as digits as its factorization.

257572454453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520000, while the sum is 53.

The spelling of 257572454453 in words is "two hundred fifty-seven billion, five hundred seventy-two million, four hundred fifty-four thousand, four hundred fifty-three".