507499957 has 2 divisors, whose sum is σ = 507499958. Its totient is φ = 507499956.

The previous prime is 507499939. The next prime is 507499961. The reversal of 507499957 is 759994705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401842116 + 105657841 = 20046^2 + 10279^2 .

It is a cyclic number.

It is not a de Polignac number, because 507499957 - 2¹⁵ = 507467189 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 507499898 and 507499907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507499987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253749978 + 253749979.

It is an arithmetic number, because the mean of its divisors is an integer number (253749979).

Almost surely, 2^507499957 is an apocalyptic number.

It is an amenable number.

507499957 is a deficient number, since it is larger than the sum of its proper divisors (1).

507499957 is an equidigital number, since it uses as much as digits as its factorization.

507499957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3572100, while the sum is 55.

The square root of 507499957 is about 22527.7596977596. The cubic root of 507499957 is about 797.6493272916.

It can be divided in two parts, 50749 and 9957, that added together give a palindrome (60706).

The spelling of 507499957 in words is "five hundred seven million, four hundred ninety-nine thousand, nine hundred fifty-seven".