420233634525 has 24 divisors (see below), whose sum is σ = 706562321760. Its totient is φ = 220325880640.

The previous prime is 420233634521. The next prime is 420233634599. The reversal of 420233634525 is 525436332024.

It is not a de Polignac number, because 420233634525 - 2² = 420233634521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420233634521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47479602 + ... + 47488451.

It is an arithmetic number, because the mean of its divisors is an integer number (29440096740).

Almost surely, 2^420233634525 is an apocalyptic number.

It is an amenable number.

420233634525 is a deficient number, since it is larger than the sum of its proper divisors (286328687235).

420233634525 is a wasteful number, since it uses less digits than its factorization.

420233634525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94968125 (or 94968120 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 39.

Adding to 420233634525 its reverse (525436332024), we get a palindrome (945669966549).

The spelling of 420233634525 in words is "four hundred twenty billion, two hundred thirty-three million, six hundred thirty-four thousand, five hundred twenty-five".