465998557 has 2 divisors, whose sum is σ = 465998558. Its totient is φ = 465998556.

The previous prime is 465998549. The next prime is 465998563. The reversal of 465998557 is 755899564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303665476 + 162333081 = 17426^2 + 12741^2 .

It is a cyclic number.

It is not a de Polignac number, because 465998557 - 2³ = 465998549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465998527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232999278 + 232999279.

It is an arithmetic number, because the mean of its divisors is an integer number (232999279).

Almost surely, 2^465998557 is an apocalyptic number.

It is an amenable number.

465998557 is a deficient number, since it is larger than the sum of its proper divisors (1).

465998557 is an equidigital number, since it uses as much as digits as its factorization.

465998557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 58.

The square root of 465998557 is about 21586.9997220549. Note that the first 3 decimals coincide. The cubic root of 465998557 is about 775.2852544107.

The spelling of 465998557 in words is "four hundred sixty-five million, nine hundred ninety-eight thousand, five hundred fifty-seven".