501494450 has 18 divisors (see below), whose sum is σ = 933074301. Its totient is φ = 200534440.

The previous prime is 501494447. The next prime is 501494453. The reversal of 501494450 is 54494105.

It is an interprime number because it is at equal distance from previous prime (501494447) and next prime (501494453).

It can be written as a sum of positive squares in 2 ways, for example, as 491464561 + 10029889 = 22169^2 + 3167^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=15835.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501494453) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 156767 + ... + 159933.

Almost surely, 2^501494450 is an apocalyptic number.

501494450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

501494450 is a deficient number, since it is larger than the sum of its proper divisors (431579851).

501494450 is an frugal number, since it uses more digits than its factorization.

501494450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 3174 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 501494450 is about 22394.0717601780. The cubic root of 501494450 is about 794.4905032857.

Multiplying 501494450 by its sum of digits (32), we get a square (16047822400 = 126680²).

The spelling of 501494450 in words is "five hundred one million, four hundred ninety-four thousand, four hundred fifty".