557460257 has 4 divisors (see below), whose sum is σ = 557509680. Its totient is φ = 557410836.

The previous prime is 557460251. The next prime is 557460317. The reversal of 557460257 is 752064755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 557460257 - 2¹² = 557456161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557460251) 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, 1418 + ... + 33420.

It is an arithmetic number, because the mean of its divisors is an integer number (139377420).

Almost surely, 2^557460257 is an apocalyptic number.

It is an amenable number.

557460257 is a deficient number, since it is larger than the sum of its proper divisors (49423).

557460257 is a wasteful number, since it uses less digits than its factorization.

557460257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49422.

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 557460257 is about 23610.5962864134. The cubic root of 557460257 is about 823.0090993671.

The spelling of 557460257 in words is "five hundred fifty-seven million, four hundred sixty thousand, two hundred fifty-seven".