490250557 has 4 divisors (see below), whose sum is σ = 490652640. Its totient is φ = 489848476.

The previous prime is 490250549. The next prime is 490250569. The reversal of 490250557 is 755052094.

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.

It is a cyclic number.

It is not a de Polignac number, because 490250557 - 2³ = 490250549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490259557) 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, 199207 + ... + 201652.

It is an arithmetic number, because the mean of its divisors is an integer number (122663160).

Almost surely, 2^490250557 is an apocalyptic number.

It is an amenable number.

490250557 is a deficient number, since it is larger than the sum of its proper divisors (402083).

490250557 is a wasteful number, since it uses less digits than its factorization.

490250557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402082.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 490250557 is about 22141.6024036202. The cubic root of 490250557 is about 788.5078692655.

The spelling of 490250557 in words is "four hundred ninety million, two hundred fifty thousand, five hundred fifty-seven".