803250520129 has 8 divisors (see below), whose sum is σ = 824971226408. Its totient is φ = 781530405120.

The previous prime is 803250520103. The next prime is 803250520151. The reversal of 803250520129 is 921025052308.

It can be written as a sum of positive squares in 4 ways, for example, as 679503462400 + 123747057729 = 824320^2 + 351777^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 803250520129 - 2¹⁹ = 803249995841 is a prime.

It is a super-2 number, since 2×803250520129² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803250520199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958839 + ... + 5118259.

It is an arithmetic number, because the mean of its divisors is an integer number (103121403301).

Almost surely, 2^803250520129 is an apocalyptic number.

It is an amenable number.

803250520129 is a deficient number, since it is larger than the sum of its proper divisors (21720706279).

803250520129 is a wasteful number, since it uses less digits than its factorization.

803250520129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295635.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 803250520129 in words is "eight hundred three billion, two hundred fifty million, five hundred twenty thousand, one hundred twenty-nine".