507488257 has 4 divisors (see below), whose sum is σ = 507589636. Its totient is φ = 507386880.

The previous prime is 507488251. The next prime is 507488299. The reversal of 507488257 is 752884705.

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 35034561 + 472453696 = 5919^2 + 21736^2 .

It is a cyclic number.

It is not a de Polignac number, because 507488257 - 2¹¹ = 507486209 is a prime.

It is the 22528-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507488251) by changing a digit.

It is a nontrivial repunit in base 22527.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42768 + ... + 53329.

It is an arithmetic number, because the mean of its divisors is an integer number (126897409).

Almost surely, 2^507488257 is an apocalyptic number.

It is an amenable number.

507488257 is a deficient number, since it is larger than the sum of its proper divisors (101379).

507488257 is an equidigital number, since it uses as much as digits as its factorization.

507488257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101378.

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 507488257 is about 22527.5000166463. The cubic root of 507488257 is about 797.6431975250.

The spelling of 507488257 in words is "five hundred seven million, four hundred eighty-eight thousand, two hundred fifty-seven".