499362203521 has 4 divisors (see below), whose sum is σ = 499560287044. Its totient is φ = 499164120000.

The previous prime is 499362203507. The next prime is 499362203537. The reversal of 499362203521 is 125302263994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125302263994 = 2 ⋅62651131997.

It can be written as a sum of positive squares in 2 ways, for example, as 28579593025 + 470782610496 = 169055^2 + 686136^2 .

It is a cyclic number.

It is not a de Polignac number, because 499362203521 - 2⁷ = 499362203393 is a prime.

It is a super-2 number, since 2×499362203521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499362203551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99037980 + ... + 99043021.

It is an arithmetic number, because the mean of its divisors is an integer number (124890071761).

Almost surely, 2^499362203521 is an apocalyptic number.

It is an amenable number.

499362203521 is a deficient number, since it is larger than the sum of its proper divisors (198083523).

499362203521 is a wasteful number, since it uses less digits than its factorization.

499362203521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198083522.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 499362203521 in words is "four hundred ninety-nine billion, three hundred sixty-two million, two hundred three thousand, five hundred twenty-one".