420789525 has 96 divisors (see below), whose sum is σ = 809948160. Its totient is φ = 190894080.

The previous prime is 420789521. The next prime is 420789527. The reversal of 420789525 is 525987024.

It is not a de Polignac number, because 420789525 - 2² = 420789521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420789521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 878236 + ... + 878714.

It is an arithmetic number, because the mean of its divisors is an integer number (8436960).

Almost surely, 2^420789525 is an apocalyptic number.

It is an amenable number.

420789525 is a deficient number, since it is larger than the sum of its proper divisors (389158635).

420789525 is a wasteful number, since it uses less digits than its factorization.

420789525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 420789525 is about 20513.1549255594. The cubic root of 420789525 is about 749.3562030811.

The spelling of 420789525 in words is "four hundred twenty million, seven hundred eighty-nine thousand, five hundred twenty-five".