461556499 has 2 divisors, whose sum is σ = 461556500. Its totient is φ = 461556498.

The previous prime is 461556461. The next prime is 461556503. The reversal of 461556499 is 994655164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461556499 - 2¹⁵ = 461523731 is a prime.

It is not a weakly prime, because it can be changed into another prime (461556899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230778249 + 230778250.

It is an arithmetic number, because the mean of its divisors is an integer number (230778250).

Almost surely, 2^461556499 is an apocalyptic number.

461556499 is a deficient number, since it is larger than the sum of its proper divisors (1).

461556499 is an equidigital number, since it uses as much as digits as its factorization.

461556499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 49.

The square root of 461556499 is about 21483.8660161527. The cubic root of 461556499 is about 772.8139570025.

The spelling of 461556499 in words is "four hundred sixty-one million, five hundred fifty-six thousand, four hundred ninety-nine".