283072725 has 60 divisors (see below), whose sum is σ = 564735556. Its totient is φ = 139345920.

The previous prime is 283072723. The next prime is 283072739. The reversal of 283072725 is 527270382.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1034289 + 282038436 = 1017^2 + 16794^2 .

It is not a de Polignac number, because 283072725 - 2¹ = 283072723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 283072725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283072723) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 20949 + ... + 31701.

Almost surely, 2^283072725 is an apocalyptic number.

283072725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

283072725 is a deficient number, since it is larger than the sum of its proper divisors (281662831).

283072725 is a wasteful number, since it uses less digits than its factorization.

283072725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10788 (or 10774 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 283072725 is about 16824.7652286741. The cubic root of 283072725 is about 656.5976769949.

The spelling of 283072725 in words is "two hundred eighty-three million, seventy-two thousand, seven hundred twenty-five".