421525532585 has 16 divisors (see below), whose sum is σ = 511062452352. Its totient is φ = 333747427200.

The previous prime is 421525532579. The next prime is 421525532621. The reversal of 421525532585 is 585235525124.

It is not a de Polignac number, because 421525532585 - 2⁶ = 421525532521 is a prime.

It is a Duffinian 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, 702821 + ... + 1156290.

It is an arithmetic number, because the mean of its divisors is an integer number (31941403272).

Almost surely, 2^421525532585 is an apocalyptic number.

It is an amenable number.

421525532585 is a deficient number, since it is larger than the sum of its proper divisors (89536919767).

421525532585 is a wasteful number, since it uses less digits than its factorization.

421525532585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859584.

The product of its digits is 2400000, while the sum is 47.

The spelling of 421525532585 in words is "four hundred twenty-one billion, five hundred twenty-five million, five hundred thirty-two thousand, five hundred eighty-five".