401598503503 has 2 divisors, whose sum is σ = 401598503504. Its totient is φ = 401598503502.

The previous prime is 401598503437. The next prime is 401598503587. The reversal of 401598503503 is 305305895104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401598503503 is a prime.

It is a super-2 number, since 2×401598503503² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401598503503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401598563503) 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, 200799251751 + 200799251752.

It is an arithmetic number, because the mean of its divisors is an integer number (200799251752).

Almost surely, 2^401598503503 is an apocalyptic number.

401598503503 is a deficient number, since it is larger than the sum of its proper divisors (1).

401598503503 is an equidigital number, since it uses as much as digits as its factorization.

401598503503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 401598503503 in words is "four hundred one billion, five hundred ninety-eight million, five hundred three thousand, five hundred three".