420573555 has 12 divisors (see below), whose sum is σ = 728994240. Its totient is φ = 224305872.

The previous prime is 420573547. The next prime is 420573563. The reversal of 420573555 is 555375024.

It is an interprime number because it is at equal distance from previous prime (420573547) and next prime (420573563).

It is not a de Polignac number, because 420573555 - 2³ = 420573547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4672995 + ... + 4673084.

It is an arithmetic number, because the mean of its divisors is an integer number (60749520).

Almost surely, 2^420573555 is an apocalyptic number.

420573555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420573555 is a deficient number, since it is larger than the sum of its proper divisors (308420685).

420573555 is a wasteful number, since it uses less digits than its factorization.

420573555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346090 (or 9346087 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The square root of 420573555 is about 20507.8900669962. The cubic root of 420573555 is about 749.2279789173.

The spelling of 420573555 in words is "four hundred twenty million, five hundred seventy-three thousand, five hundred fifty-five".