502655401 has 2 divisors, whose sum is σ = 502655402. Its totient is φ = 502655400.

The previous prime is 502655389. The next prime is 502655441. The reversal of 502655401 is 104556205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420209001 + 82446400 = 20499^2 + 9080^2 .

It is a cyclic number.

It is not a de Polignac number, because 502655401 - 2⁵ = 502655369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 502655401.

It is not a weakly prime, because it can be changed into another prime (502655441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251327700 + 251327701.

It is an arithmetic number, because the mean of its divisors is an integer number (251327701).

Almost surely, 2^502655401 is an apocalyptic number.

It is an amenable number.

502655401 is a deficient number, since it is larger than the sum of its proper divisors (1).

502655401 is an equidigital number, since it uses as much as digits as its factorization.

502655401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 502655401 is about 22419.9777207739. The cubic root of 502655401 is about 795.1031080750.

The spelling of 502655401 in words is "five hundred two million, six hundred fifty-five thousand, four hundred one".