720425253 has 16 divisors (see below), whose sum is σ = 973958400. Its totient is φ = 473603520.

The previous prime is 720425249. The next prime is 720425263. The reversal of 720425253 is 352524027.

It is not a de Polignac number, because 720425253 - 2² = 720425249 is a prime.

It is a super-2 number, since 2×720425253² = 1038025090320228018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 720425253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720425203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261463 + ... + 264203.

It is an arithmetic number, because the mean of its divisors is an integer number (60872400).

Almost surely, 2^720425253 is an apocalyptic number.

It is an amenable number.

720425253 is a deficient number, since it is larger than the sum of its proper divisors (253533147).

720425253 is a wasteful number, since it uses less digits than its factorization.

720425253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 720425253 is about 26840.7386820855. The cubic root of 720425253 is about 896.4573711394.

The spelling of 720425253 in words is "seven hundred twenty million, four hundred twenty-five thousand, two hundred fifty-three".