720425601 has 24 divisors (see below), whose sum is σ = 1189977984. Its totient is φ = 411428160.

The previous prime is 720425599. The next prime is 720425611. The reversal of 720425601 is 106524027.

It is not a de Polignac number, because 720425601 - 2¹ = 720425599 is a prime.

It is a super-2 number, since 2×720425601² = 1038026093152422402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (720425611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203436 + ... + 206946.

It is an arithmetic number, because the mean of its divisors is an integer number (49582416).

Almost surely, 2^720425601 is an apocalyptic number.

It is an amenable number.

720425601 is a deficient number, since it is larger than the sum of its proper divisors (469552383).

720425601 is a wasteful number, since it uses less digits than its factorization.

720425601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781 (or 6778 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 720425601 is about 26840.7451647677. The cubic root of 720425601 is about 896.4575154834.

Adding to 720425601 its reverse (106524027), we get a palindrome (826949628).

The spelling of 720425601 in words is "seven hundred twenty million, four hundred twenty-five thousand, six hundred one".