257554061 has 4 divisors (see below), whose sum is σ = 258888732. Its totient is φ = 256219392.

The previous prime is 257554051. The next prime is 257554067. The reversal of 257554061 is 160455752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110901961 + 146652100 = 10531^2 + 12110^2 .

It is a cyclic number.

It is not a de Polignac number, because 257554061 - 2⁶ = 257553997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257554067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667046 + ... + 667431.

It is an arithmetic number, because the mean of its divisors is an integer number (64722183).

Almost surely, 2^257554061 is an apocalyptic number.

It is an amenable number.

257554061 is a deficient number, since it is larger than the sum of its proper divisors (1334671).

257554061 is a wasteful number, since it uses less digits than its factorization.

257554061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334670.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 257554061 is about 16048.4909259407. The cubic root of 257554061 is about 636.2426827576.

The spelling of 257554061 in words is "two hundred fifty-seven million, five hundred fifty-four thousand, sixty-one".