421953585 has 16 divisors (see below), whose sum is σ = 675725760. Its totient is φ = 224841920.

The previous prime is 421953559. The next prime is 421953593. The reversal of 421953585 is 585359124.

It is not a de Polignac number, because 421953585 - 2¹⁰ = 421952561 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806 + ... + 29624.

It is an arithmetic number, because the mean of its divisors is an integer number (42232860).

Almost surely, 2^421953585 is an apocalyptic number.

It is an amenable number.

421953585 is a deficient number, since it is larger than the sum of its proper divisors (253772175).

421953585 is a wasteful number, since it uses less digits than its factorization.

421953585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25008.

The product of its digits is 216000, while the sum is 42.

The square root of 421953585 is about 20541.5088296843. The cubic root of 421953585 is about 750.0465659976.

The spelling of 421953585 in words is "four hundred twenty-one million, nine hundred fifty-three thousand, five hundred eighty-five".