420555572503 has 8 divisors (see below), whose sum is σ = 459206130960. Its totient is φ = 381974719680.

The previous prime is 420555572491. The next prime is 420555572519. The reversal of 420555572503 is 305275555024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420555572503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420555572503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420555576503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17413788 + ... + 17437921.

It is an arithmetic number, because the mean of its divisors is an integer number (57400766370).

Almost surely, 2^420555572503 is an apocalyptic number.

420555572503 is a deficient number, since it is larger than the sum of its proper divisors (38650558457).

420555572503 is a wasteful number, since it uses less digits than its factorization.

420555572503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34852817.

The product of its (nonzero) digits is 1050000, while the sum is 43.

The spelling of 420555572503 in words is "four hundred twenty billion, five hundred fifty-five million, five hundred seventy-two thousand, five hundred three".