499552381 has 2 divisors, whose sum is σ = 499552382. Its totient is φ = 499552380.

The previous prime is 499552357. The next prime is 499552411. The reversal of 499552381 is 183255994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305200900 + 194351481 = 17470^2 + 13941^2 .

It is a cyclic number.

It is not a de Polignac number, because 499552381 - 2⁷ = 499552253 is a prime.

It is a super-2 number, since 2×499552381² = 499105162725538322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499552301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249776190 + 249776191.

It is an arithmetic number, because the mean of its divisors is an integer number (249776191).

Almost surely, 2^499552381 is an apocalyptic number.

It is an amenable number.

499552381 is a deficient number, since it is larger than the sum of its proper divisors (1).

499552381 is an equidigital number, since it uses as much as digits as its factorization.

499552381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 499552381 is about 22350.6684687505. The cubic root of 499552381 is about 793.4636049793.

The spelling of 499552381 in words is "four hundred ninety-nine million, five hundred fifty-two thousand, three hundred eighty-one".