720425535 has 16 divisors (see below), whose sum is σ = 1154323680. Its totient is φ = 383679360.

The previous prime is 720425521. The next prime is 720425567. The reversal of 720425535 is 535524027.

It is not a de Polignac number, because 720425535 - 2¹⁰ = 720424511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720425496 and 720425505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23236 + ... + 44505.

It is an arithmetic number, because the mean of its divisors is an integer number (72145230).

Almost surely, 2^720425535 is an apocalyptic number.

720425535 is a deficient number, since it is larger than the sum of its proper divisors (433898145).

720425535 is a wasteful number, since it uses less digits than its factorization.

720425535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68458.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 720425535 is about 26840.7439352936. The cubic root of 720425535 is about 896.4574881078.

It can be divided in two parts, 72042 and 5535, that added together give a palindrome (77577).

The spelling of 720425535 in words is "seven hundred twenty million, four hundred twenty-five thousand, five hundred thirty-five".