720225535 has 8 divisors (see below), whose sum is σ = 887629536. Its totient is φ = 560607840.

The previous prime is 720225529. The next prime is 720225559. The reversal of 720225535 is 535522027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720225535 - 2²³ = 711836927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720225497 and 720225506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946371 + ... + 1946740.

It is an arithmetic number, because the mean of its divisors is an integer number (110953692).

Almost surely, 2^720225535 is an apocalyptic number.

720225535 is a deficient number, since it is larger than the sum of its proper divisors (167404001).

720225535 is a wasteful number, since it uses less digits than its factorization.

720225535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893153.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 720225535 is about 26837.0179975347. The cubic root of 720225535 is about 896.3745241360.

The spelling of 720225535 in words is "seven hundred twenty million, two hundred twenty-five thousand, five hundred thirty-five".