4247780625 has 135 divisors (see below), whose sum is σ = 8535556029. Its totient is φ = 2033460000.

The previous prime is 4247780623. The next prime is 4247780629. The reversal of 4247780625 is 5260877424.

It is a happy number.

The square root of 4247780625 is 65175.

It is a perfect power (a square), and thus also a powerful number.

4247780625 is a `hidden beast` number, since 42 + 477 + 80 + 62 + 5 = 666.

4247780625 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 333026001 + 3914754624 = 18249^2 + 62568^2 .

It is not a de Polignac number, because 4247780625 - 2¹ = 4247780623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4247780623) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 53769336 + ... + 53769414.

Almost surely, 2^4247780625 is an apocalyptic number.

4247780625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4247780625 is the 65175-th square number.

4247780625 is the 32588-th centered octagonal number.

It is an amenable number.

4247780625 is an abundant number, since it is smaller than the sum of its proper divisors (4287775404).

4247780625 is an equidigital number, since it uses as much as digits as its factorization.

4247780625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The cubic root of 4247780625 is about 1619.5238941547.

The spelling of 4247780625 in words is "four billion, two hundred forty-seven million, seven hundred eighty thousand, six hundred twenty-five".