421505133532 has 48 divisors (see below), whose sum is σ = 878716776448. Its totient is φ = 173139405120.

The previous prime is 421505133479. The next prime is 421505133563. The reversal of 421505133532 is 235331505124.

It is a congruent 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, 2966844 + ... + 3105667.

Almost surely, 2^421505133532 is an apocalyptic number.

It is an amenable number.

421505133532 is an abundant number, since it is smaller than the sum of its proper divisors (457211642916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421505133532 is a wasteful number, since it uses less digits than its factorization.

421505133532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072626 (or 6072624 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 421505133532 its reverse (235331505124), we get a palindrome (656836638656).

The spelling of 421505133532 in words is "four hundred twenty-one billion, five hundred five million, one hundred thirty-three thousand, five hundred thirty-two".