421253575 has 12 divisors (see below), whose sum is σ = 539205568. Its totient is φ = 326131200.

The previous prime is 421253471. The next prime is 421253587. The reversal of 421253575 is 575352124.

It is not a de Polignac number, because 421253575 - 2⁷ = 421253447 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 421253575.

It is a congruent number.

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, 271002 + ... + 272551.

Almost surely, 2^421253575 is an apocalyptic number.

421253575 is a deficient number, since it is larger than the sum of its proper divisors (117951993).

421253575 is a wasteful number, since it uses less digits than its factorization.

421253575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543594 (or 543589 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 421253575 is about 20524.4628431538. The cubic root of 421253575 is about 749.6315671875.

The spelling of 421253575 in words is "four hundred twenty-one million, two hundred fifty-three thousand, five hundred seventy-five".