28030250501 has 8 divisors (see below), whose sum is σ = 30766054944. Its totient is φ = 25325712720.

The previous prime is 28030250497. The next prime is 28030250519. The reversal of 28030250501 is 10505203082.

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

It is not a de Polignac number, because 28030250501 - 2² = 28030250497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030250551) 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, 7814786 + ... + 7818371.

It is an arithmetic number, because the mean of its divisors is an integer number (3845756868).

Almost surely, 2^28030250501 is an apocalyptic number.

It is an amenable number.

28030250501 is a deficient number, since it is larger than the sum of its proper divisors (2735804443).

28030250501 is a wasteful number, since it uses less digits than its factorization.

28030250501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15633331.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 28030250501 its reverse (10505203082), we get a palindrome (38535453583).

The spelling of 28030250501 in words is "twenty-eight billion, thirty million, two hundred fifty thousand, five hundred one".