506161457 has 2 divisors, whose sum is σ = 506161458. Its totient is φ = 506161456.

The previous prime is 506161363. The next prime is 506161489. The reversal of 506161457 is 754161605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311028496 + 195132961 = 17636^2 + 13969^2 .

It is a cyclic number.

It is not a de Polignac number, because 506161457 - 2¹⁸ = 505899313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (506161057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253080728 + 253080729.

It is an arithmetic number, because the mean of its divisors is an integer number (253080729).

Almost surely, 2^506161457 is an apocalyptic number.

It is an amenable number.

506161457 is a deficient number, since it is larger than the sum of its proper divisors (1).

506161457 is an equidigital number, since it uses as much as digits as its factorization.

506161457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 506161457 is about 22498.0322917361. The cubic root of 506161457 is about 796.9474594975.

The spelling of 506161457 in words is "five hundred six million, one hundred sixty-one thousand, four hundred fifty-seven".